nrf_wifi: Update RPU patch to rev#c96a720c9e4

UMAC:
	[SHEL-3044] : Run time API function to enable QOS null
	              frame based power save.
	[SHEL-2971] : Handling rx rate flags in UMAC patch.
	[SHEL-2995] : Parsing keep alive parameters from host in command
		      init and sending to LMAC.
	              Checking IRQ status before entering sleep mode.
	              Added watchdog timer programming from Host.

LMAC:
	Patch Optimization changes.

PHY:
	[SHEL-3087] : Determine the Chip package and modify the
		      optimized setting value for PALDOTRIM to 3.4V
		      for CSP and leave it unchanged at 3.3V for QFN.
	[SHEL-2768] : Develop patch for Enhanced TX DC algorithm.
	[SHEL-3094] : Implemented a new command in the Radio Test sample
		      to read and display battery voltage in Volts.
	[SHEL-2522] : Updated the PHY firmware design document
		      to include details on various aspects of
		      firmware functionality.
	[SHEL-2856] : ROM patch optimizations.
	[SHEL-2854] : Optimize PHY patch functions.

Signed-off-by: Mahammadyunus Patil <[email protected]>

Author: imapa