arch/arm/cpu/armv7/omap-common/clocks-common.c: Fix GCC 4.6 warnings

arch/arm/cpu/armv7/omap-common/clocks-common.c: Fix GCC 4.6 warnings

Fix:
clocks-common.c: In function 'setup_dplls':
clocks-common.c:256:6: warning: variable 'sysclk_ind' set but not used
[-Wunused-but-set-variable]
clocks-common.c: In function 'setup_non_essential_dplls':
clocks-common.c:292:6: warning: variable 'sysclk_ind' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Anatolij Gustschin <[email protected]>
Cc: sricharan <[email protected]>
Cc: Tom Rini <[email protected]>
Acked-by: Marek Vasut <[email protected]>
Acked-by: Tom Rini <[email protected]>