rsi: Rename file rsi_91x_pkt.c to rsi_91x_hal.c

The file rsi_91x_hal.c is going to contain device specific code i.e new
firmware loading method for RS9113 chipset. As the file rsi_91x_pkt.c
contains code to prepare device specific descriptors for transmit packet,
this file is renamed to rsi_91x_hal.c which is more relevant as per it's
functionality.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/rsi/Makefile

@@ -2,7 +2,7 @@ rsi_91x-y			+= rsi_91x_main.o
 rsi_91x-y			+= rsi_91x_core.o
 rsi_91x-y			+= rsi_91x_mac80211.o
 rsi_91x-y			+= rsi_91x_mgmt.o
-rsi_91x-y			+= rsi_91x_pkt.o
+rsi_91x-y			+= rsi_91x_hal.o
 rsi_91x-$(CONFIG_RSI_DEBUGFS)	+= rsi_91x_debugfs.o
 
 rsi_usb-y			+= rsi_91x_usb.o rsi_91x_usb_ops.o