board/c2mon/pcmcia.c: Fix GCC 4.6 build warning

Fix:
pcmcia.c: In function 'pcmcia_voltage_set':
pcmcia.c:202:21: warning: variable 'cp' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
1 file changed