manifest: sdk-zephyr: Pull SPI clock switch feature

Helps with higher SPI frequencies.

Signed-off-by: Chaitanya Tata <[email protected]>

Author: krish2718

west.yml

@@ -65,7 +65,7 @@ manifest:
     # https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/guides/modules.html
     - name: zephyr
       repo-path: sdk-zephyr
-      revision: aa04c0cae08f8d863c5c969cb1597f82610771c2
+      revision: 276b91c420806449650fcf452e72045085739322
       import:
         # In addition to the zephyr repository itself, NCS also
         # imports the contents of zephyr/west.yml at the above