UBI: print reserved_peb when it is too large

This patch makes debugging a missconfigured UBI a bit easier
by providing the needed information in the boot log.

Signed-off-by: Deepak Saxena <dsaxena@laptop.org>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
1 file changed