overlays: README: Sort the dtparam names

There are enough dtparams now that not having them in alphabetical
order makes them hard to find.

Signed-off-by: Phil Elwell <[email protected]>

Author: pelwell

arch/arm/boot/dts/overlays/README

@@ -130,6 +130,23 @@ Name:   <The base DTB>
 Info:   Configures the base Raspberry Pi hardware
 Load:   <loaded automatically>
 Params:
+        act_led_trigger         Choose which activity the LED tracks.
+                                Use "heartbeat" for a nice load indicator.
+                                (default "mmc")
+
+        act_led_activelow       Set to "on" to invert the sense of the LED
+                                (default "off")
+                                N.B. For Pi 3B, 3B+, 3A+ and 4B, use the act-led
+                                overlay.
+
+        act_led_gpio            Set which GPIO to use for the activity LED
+                                (in case you want to connect it to an external
+                                device)
+                                (default "16" on a non-Plus board, "47" on a
+                                Plus or Pi 2)
+                                N.B. For Pi 3B, 3B+, 3A+ and 4B, use the act-led
+                                overlay.
+
         ant1                    Select antenna 1 (default). CM4/5 only.
 
         ant2                    Select antenna 2. CM4/5 only.
@@ -340,12 +357,11 @@ Params:
         pciex1_tperst_clk_ms    Alias for pcie_tperst_clk_ms
                                 (2712 only, default "0")
 
-        spi                     Set to "on" to enable the spi interfaces
-                                (default "off")
-
-        spi_dma4                Use to enable 40-bit DMA on spi interfaces
-                                (the assigned value doesn't matter)
-                                (2711 only)
+        pwr_led_trigger
+        pwr_led_activelow
+        pwr_led_gpio
+                                As for act_led_*, but using the PWR LED.
+                                Not available on Model A/B boards.
 
         random                  Set to "on" to enable the hardware random
                                 number generator (default "on")
@@ -386,6 +402,13 @@ Params:
         sdio_overclock          Clock (in MHz) to use when the MMC framework
                                 requests 50MHz for the SDIO/WLAN interface.
 
+        spi                     Set to "on" to enable the spi interfaces
+                                (default "off")
+
+        spi_dma4                Use to enable 40-bit DMA on spi interfaces
+                                (the assigned value doesn't matter)
+                                (2711 only)
+
         suspend                 Make the power button trigger a suspend rather
                                 than a power-off (2712 only, default "off")
 
@@ -410,29 +433,6 @@ Params:
                                 with or without colon separators, written in the
                                 natural (big-endian) order.
 
-        act_led_trigger         Choose which activity the LED tracks.
-                                Use "heartbeat" for a nice load indicator.
-                                (default "mmc")
-
-        act_led_activelow       Set to "on" to invert the sense of the LED
-                                (default "off")
-                                N.B. For Pi 3B, 3B+, 3A+ and 4B, use the act-led
-                                overlay.
-
-        act_led_gpio            Set which GPIO to use for the activity LED
-                                (in case you want to connect it to an external
-                                device)
-                                (default "16" on a non-Plus board, "47" on a
-                                Plus or Pi 2)
-                                N.B. For Pi 3B, 3B+, 3A+ and 4B, use the act-led
-                                overlay.
-
-        pwr_led_trigger
-        pwr_led_activelow
-        pwr_led_gpio
-                                As for act_led_*, but using the PWR LED.
-                                Not available on Model A/B boards.
-
         N.B. It is recommended to only enable those interfaces that are needed.
         Leaving all interfaces enabled can lead to unwanted behaviour (i2c_vc
         interfering with Pi Camera, I2S and SPI hogging GPIO pins, etc.)