Staging: rtl8192e: fix lots of sparse warnings

This removes a number of static and extern warnings that sparse
complains about.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --cc drivers/staging/rtl8192e/r8180_93cx6.c
Simple merge

diff --cc drivers/staging/rtl8192e/r8190_rtl8256.c
Simple merge

diff --cc drivers/staging/rtl8192e/r8192E_core.c
Simple merge

diff --cc drivers/staging/rtl8192e/r8192E_dm.c
Simple merge

diff --cc drivers/staging/rtl8192e/r8192E_wx.c
Simple merge

diff --cc drivers/staging/rtl8192e/r819xE_cmdpkt.c
Simple merge

diff --cc drivers/staging/rtl8192e/r819xE_firmware.c
Simple merge

diff --cc drivers/staging/rtl8192e/r819xE_firmware_img.h
Simple merge

diff --cc drivers/staging/rtl8192e/r819xE_phy.c
Simple merge