dts: arm: st: h7rs: Enable HSI internal clock

Enable HSI clock node to fix get_hclk_frequency() returns 0 when called
from stm32_clock_control_init(). HSI on is the devices reset default
value anyway, but the STM32_HSI_FREQ define is set to 0 when not enabled.

Signed-off-by: Thomas Decker <[email protected]>

Author: TD-JBL

dts/arm/st/h7rs/stm32h7rs.dtsi

@@ -111,7 +111,7 @@
 			compatible = "st,stm32h7-hsi-clock";
 			hsi-div = <1>;	/* HSI RC: 64MHz, hsi_clk = 64MHz */
 			clock-frequency = <DT_FREQ_M(64)>;
-			status = "disabled";
+			status = "okay"; /* controller reset default is on */
 		};
 
 		clk_hsi48: clk-hsi48 {