Android vout: fix possible mutex leak.
Android vout: fix possible mutex leak.

Do not leak mutex if i_chroma is VLC_CODEC_ANDROID_OPAQUE.

Signed-off-by: Martin Storsjö <54669547a225ff20cba8b75a4adca540eef25858@martin.st>
(cherry picked from commit 3d90771a7b113a554ddda9f3ea98ac137f5c9dcc)
Signed-off-by: Jean-Baptiste Kempf <7b85a41a628204b76aba4326273a3ccc74bd009a@videolan.org>

jomanmuk/vlc-2.2,jomanmuk/vlc-2.2,jomanmuk/vlc-2.2,jomanmuk/vlc-2.2,jomanmuk/vlc-2.2,jomanmuk/vlc-2.2,jomanmuk/vlc-2.2