Fix the following warning detected by checkpatach.pl:
WARNING: Prefer 'unsigned int' to bare use of 'unsigned'
TEST=Build and run on Galileo Gen2
Change-Id: Ic266c077eb115e0c7d934c15bcc4cc9b9e530a39
Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com>
Reviewed-on: https://review.coreboot.org/18756
Tested-by: build bot (Jenkins)
Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>