om> 1280558254 +0300
committer Artem Bityutskiy <Artem.Bityutskiy@nokia.com> 1287497997 +0300

UBI: make check_pattern function non-static

This patch turns static function 'check_pattern()' into a non-static
'ubi_check_pattern()'. This is just a preparation for the chages which
are coming in the next patches.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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