src/lib: Remove braces for single statements

Fix the following warning detected by checkpatch.pl:

WARNING: braces {} are not necessary for single statement blocks

TEST=Build and run on Galileo Gen2

Change-Id: Ie4b41f6fb75142ddd75103a55e0347ed85e7e873
Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com>
Reviewed-on: https://review.coreboot.org/18697
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins)

src/lib/delay.c

@@ -2,14 +2,12 @@
 void mdelay(unsigned int msecs)
 {
 	unsigned int i;
-	for(i = 0; i < msecs; i++) {
+	for(i = 0; i < msecs; i++)
 		udelay(1000);
-	}
 }
 void delay(unsigned int secs)
 {
 	unsigned int i;
-	for(i = 0; i < secs; i++) {
+	for(i = 0; i < secs; i++)
 		mdelay(1000);
-	}
 }