src/lib: Add space before (

Fix the following error detected by checkpatch.pl:

ERROR: space required before the open parenthesis '('

TEST=Build and run on Galileo Gen2

Change-Id: I8953fecbe75136ff989c9e3cf6c5e155dcee3c3b
Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com>
Reviewed-on: https://review.coreboot.org/18698
Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

src/lib/memcmp.c

@@ -7,7 +7,7 @@ int memcmp(const void *src1, const void *src2, size_t bytes)
 	s1 = src1;
 	s2 = src2;
 	result = 0;
-	while((bytes > 0) && (result == 0)) {
+	while ((bytes > 0) && (result == 0)) {
 		result = *s1 - *s2;
 		bytes--;
 		s1++;