[ARM] 3077/1: S3C2410 - regs-iis.h missing mask for IISMOD_FS

Patch from Ben Dooks

Add definition for S3C2410_IISMOD_FS_MASK

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>