staging: rtl8192e: Rename init_firmware

Use naming schema found in other rtlwifi devices.
Rename init_firmware to rtl92e_init_fw.

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --cc drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
Simple merge

diff --cc drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c
Simple merge

diff --cc drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.h
Simple merge