arch/powerpc/cpu/mpc8xxx/fsl_lbc.c: Fix GCC 4.6 build warning

Fix:

fsl_lbc.c: In function 'upmconfig':
fsl_lbc.c:110:9: warning: variable 'mdr' set but not used [-Wunused-but-set-variable]

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
1 file changed