west: Add cmsis-dsp fix for negative shifts

This PR changes some explicit negative right shifts into positive left
shifts as required by GCC 14.

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

Author: keith-packard

west.yml

@@ -122,7 +122,7 @@ manifest:
       groups:
         - hal
     - name: cmsis-dsp
-      revision: pull/6/head
+      revision: pull/7/head
       path: modules/lib/cmsis-dsp
     - name: cmsis-nn
       revision: e9328d612ea3ea7d0d210d3ac16ea8667c01abdd