update samd-peripherals

dhalbert · dhalbert · commit 2528b67e775f · 2019-04-04T16:36:14.000-04:00
diff --git a/ports/atmel-samd/peripherals b/ports/atmel-samd/peripherals
@@ -1 +1 @@
-Subproject commit 15d5740b7ba791cdeb010bcc2e3f6d6f26ad2d6d
+Subproject commit 778d4f3736728da7ba7795c5c44176c415c903cf
