staging: r8188eu: Fix build errors for allyesconfig

This driver has some global names that are the same as found in
driver r8712. Fix the allyesconfig build errors by changing the
names of those routines.

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