src/lib: Fix brace positions

Fix the following errors detected by checkpatch.pl:

ERROR: open brace '{' following function declarations go on the next
line
ERROR: that open brace { should be on the previous line
ERROR: open brace '{' following struct go on the same line
ERROR: else should follow close brace '}'

TEST=Build and run on Galileo Gen2

Change-Id: I971ada9ba9ba7ce5d8029323710fee1a6166570b
Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com>
Reviewed-on: https://review.coreboot.org/18759
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

src/lib/halt.c

@@ -17,7 +17,8 @@
 #include <arch/hlt.h>
 #include <halt.h>
 
-void halt(void) {
+void halt(void)
+{
 	while (1)
 		hlt();
 }