manifest: Branch for host supporting power saving iot

nrfconnect/sdk-zephyr#1837
nrfconnect/sdk-hostap#176
nrfconnect/sdk-nrfxlib#1391

Signed-off-by: Ajay Parida <ajay.parida@nordicsemi.no>

Author: ajayparida

west.yml

@@ -63,7 +63,7 @@ manifest:
     # https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/guides/modules.html
     - name: zephyr
       repo-path: sdk-zephyr
-      revision: 3611f46f85c0980c19b60bb842033cbaba35e023
+      revision: pull/1837/head
       import:
         # In addition to the zephyr repository itself, NCS also
         # imports the contents of zephyr/west.yml at the above
@@ -114,7 +114,7 @@ manifest:
     - name: hostap
       repo-path: sdk-hostap
       path: modules/lib/hostap
-      revision: 6311fde66f87ac8c8838a2d5fcfe55a498a8682a
+      revision: pull/176/head
       userdata:
         ncs:
           upstream-url: https://w1.fi/cgit/hostap/
@@ -148,7 +148,7 @@ manifest:
     - name: nrfxlib
       repo-path: sdk-nrfxlib
       path: nrfxlib
-      revision: 99a747cc9d8aae011c6628c42aecd617b24e638e
+      revision: pull/1391/head
     - name: trusted-firmware-m
       repo-path: sdk-trusted-firmware-m
       path: modules/tee/tf-m/trusted-firmware-m