west.yml: Update hal_silabs module to SiLabs SDK v3.1.0

This commit updates west.yml to point hal_silabs module to SiLabs SDK
v3.1.0.

Signed-off-by: Christian Taedcke <[email protected]>

Author: chrta

west.yml

@@ -69,7 +69,7 @@ manifest:
       revision: a1ec761014740a08699720298dd37ad4da360840
       path: modules/hal/microchip
     - name: hal_silabs
-      revision: 6bb4a17a2f94a39eba295dd55dbeae6f6c4c9b1b
+      revision: de93f34488f2ab4d6337af0819b377636034fcda
       path: modules/hal/silabs
     - name: hal_st
       revision: b52fdbf4b62439be9fab9bb4bae9690a42d2fb14