Update to merged peripheral change.

tannewt · tannewt · commit e8cf6a907236 · 2018-08-16T18:05:53.000-07:00
diff --git a/ports/atmel-samd/peripherals b/ports/atmel-samd/peripherals
@@ -1 +1 @@
-Subproject commit 4922fb5c062c7e6e4438966b559eb4b9e0bb1ecd
+Subproject commit 156279784cb3d22f7f8a8d93b4bb55e2d912a5f8
