staging: greybus: Fix indentation in fw-management.c

Reported by Checkpatch:
CHECK: Alignment should match open parenthesis

Signed-off-by: Uri Arev <me@wantyapps.xyz>
Link: https://lore.kernel.org/r/20220523182226.405159-1-me@wantyapps.xyz


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>