flash.h: Trivial indent fix of comment

Align with the properly tab indented comment on the CrOS
Flashrom side to make things consisent.

Change-Id: I09605bfec203d294077f298f8619bbc7d10cc68a
Signed-off-by: Edward O'Callaghan <quasisec@google.com>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/48204
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Frans Hendriks <fhendriks@eltan.com>
1 file changed