src/lib: Fix spacing

Fix the following errors and warnings detected by checkpatch.pl:

ERROR: spaces required around that '?' (ctx:WxV)
ERROR: spaces required around that '=' (ctx:VxV)
ERROR: spaces required around that '<' (ctx:VxV)
ERROR: spaces required around that '+=' (ctx:VxV)
ERROR: space required after that ',' (ctx:VxV)
ERROR: space required before the open brace '{'
ERROR: space required after that close brace '}'
ERROR: need consistent spacing around '+' (ctx:WxV)
ERROR: need consistent spacing around '*' (ctx:WxV)
ERROR: need consistent spacing around '&' (ctx:VxW)
ERROR: spaces required around that '?' (ctx:VxW)
ERROR: spaces required around that ':' (ctx:VxW)
ERROR: trailing whitespace
ERROR: space prohibited before that '++' (ctx:WxO)
ERROR: space prohibited before that ',' (ctx:WxW)
ERROR: space prohibited after that '!' (ctx:BxW)
ERROR: spaces prohibited around that '->' (ctx:VxW)
ERROR: space prohibited after that '-' (ctx:WxW)
WARNING: space prohibited before semicolon
WARNING: unnecessary whitespace before a quoted newline
WARNING: missing space after return type

Note that lib/libgcov.c and lib/lzmadecode.c are providing false
positives for ERROR: need consistent spacing around '*' (ctx:WxV)
An example is:
void __gcov_merge_add(gcov_type *counters  __attribute__ ((unused)),
      unsigned int n_counters __attribute__ ((unused))) {}

TEST=Build and run on Galileo Gen2

Change-Id: I0016327a5754018eaeb25bedf42338291632c7c1
Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com>
Reviewed-on: https://review.coreboot.org/18733
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
diff --git a/src/lib/stack.c b/src/lib/stack.c
index 590fe27..00c145a 100644
--- a/src/lib/stack.c
+++ b/src/lib/stack.c
@@ -33,7 +33,7 @@
 	int i;
 	u32 *stack = (u32 *) (top_of_stack - stack_size);
 
-	if (stack[0] != 0xDEADBEEF){
+	if (stack[0] != 0xDEADBEEF) {
 		printk(BIOS_ERR, "Stack overrun on CPU%d (address %p overwritten). "
 			"Increase stack from current %zu bytes\n",
 			core, stack, stack_size);
@@ -41,7 +41,7 @@
 		return -1;
 	}
 
-	for (i = 1; i < stack_size/sizeof(stack[0]); i++){
+	for (i = 1; i < stack_size/sizeof(stack[0]); i++) {
 		if (stack[i] == 0xDEADBEEF)
 			continue;
 		printk(BIOS_SPEW, "CPU%d: stack: %p - %p, ",