util/broadcom: Add two more NULL checks

Change-Id: I088730fd87dd39fa2c36a06c5770fad05a5808b0
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Found-by: Coverity Scan #1323511, #1323512
Reviewed-on: https://review.coreboot.org/17882
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
1 file changed