[ARM] 4250/1: Fix locomo backlight conversion error/compile failure

Fix locomo backlight conversion error and subsequent compile failure
from commit 599a52d12629394236d785615808845823875868.

Signed-off-by: RIchard Purdie <rpurdie@rpsys.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
1 file changed