staging: r8188eu: Fix sparse warnings in rtl8188e.cmd.c

Sparse displays the following:

  CHECK   drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c
drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:285:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:285:15:    expected unsigned short [usertype] *fctrl
drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:285:15:    got restricted __le16 *<noident>
drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:368:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:368:15:    expected unsigned short [usertype] *fctrl
drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:368:15:    got restricted __le16 *<noident>
drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:403:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:403:15:    expected unsigned short [usertype] *fctrl
drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:403:15:    got restricted __le16 *<noident>
drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:465:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:465:15:    expected unsigned short [usertype] *fctrl
drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:465:15:    got restricted __le16 *<noident>

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>