commonlib: Fix issues with { } and else

commonlib: Fix issues with { } and else

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

ERROR: open brace '{' following struct go on the same line
ERROR: else should follow close brace '}'
WARNING: else is not generally useful after a break or return

False positives are detected for the following checkpatch.pl error.
ERROR: that open brace { should be on the previous line
These false positives are in cbfs.c for two function definitions.

TEST=Build and run Galileo Gen2

Change-Id: Ic679ff3a2e1cfc0ed52073c20165e05bf21d76f3
Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com>
Reviewed-on: https://review.coreboot.org/18750
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)