west: Update silabs hal for both cmsis-6 and cmsis-5 compatibility

Move the manifest rev to make this module compatible with either cmsis-5 or
cmsis-6 by adapting to the CMSIS version when accessing NVIC and SCB
registers.

Signed-off-by: Keith Packard <[email protected]>

Author: keith-packard

west.yml

@@ -235,7 +235,7 @@ manifest:
       groups:
         - hal
     - name: hal_silabs
-      revision: 190a144a16bed9a938a94543ed5bbc70c0552e0f
+      revision: 95e957408ddd967ac4b69dc32096bd3793abb76c
       path: modules/hal/silabs
       groups:
         - hal