manifest: update zephyr with nrf5340 net core crash fix

This commit brings in zephyr containing the fix against crashes
of nrf5340 net core when wfi instruction was followed by access
to the memory.

Signed-off-by: Andrzej Kuros <andrzej.kuros@nordicsemi.no>

west.yml

@@ -59,7 +59,7 @@ manifest:
  # https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/guides/modules.html
  - name: zephyr
  repo-path: sdk-zephyr
- revision: 01e2e4c9ce8294d74032a2d33e0dcb1b74802568
+ revision: 77ed2a43ed4f52fd9ce19c71525617ac2a9948a7
  import:
  # In addition to the zephyr repository itself, NCS also
  # imports the contents of zephyr/west.yml at the above