nrf_wifi: Update RPU patch to rev#cfcdf187bf7

UMAC:
   [SHEL-3419] : Handle raw scan config during cmd_init.
   [SHEL-3401] : Mode based stats event separation.

LMAC:
   [SHEL-3371] : DSSS scrabler encoded as per IEEE spec.
   [NRF7X-280] : Workaround for cca issue in presence of strong
                 non wifi signal.
   [NRF7X-200] : Switch to QOS null based power save incase of
                 failure in PS POLL.

Signed-off-by: Karun Kumar Eagalapati <[email protected]>

Author: karun2796