simplicity_sdk: Patch in sl_power_manager_hal_s2.c

Patch needed to fix a bug where the SLEEPDEEP bit is not cleared
properly after a wakeup from EM2.

Signed-off-by: Bastien Beauchamp <[email protected]>

Author: silabs-BastienB

west.yml

@@ -235,7 +235,7 @@ manifest:
       groups:
         - hal
     - name: hal_silabs
-      revision: 0b58229357750b8bd0ce52e514c54ace6abcfeba
+      revision: 54cdbdb79c1ccd99b62a93d3af6caff79ab66197
       path: modules/hal/silabs
       groups:
         - hal