gfs2: Decode missing glock flags in tracepoints

[ Upstream commit 57882533 ]

Add a number of glock flags are currently not shown in the text form of
glock tracepoints.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Stable-dep-of: 2c63986d ("gfs2: deallocate inodes in gfs2_create_inode")
Signed-off-by: Sasha Levin <sashal@kernel.org>