api.c: fix file open in cg_chmod_path()

api.c: fix file open in cg_chmod_path()

In cg_chmod_path(), the commit 8b9665c29cb8 ("api.c: fix TOCTOU in
cg_chmod_path()), converted the file operations from stat -> fstat and
chmod -> fchmod to fix a Coverity warning.  The newly replaced file
operations operate on file descriptors and hence introduced a side
effect of opening the file at the wrong code block, that would only work
as expected when the caller calls cg_chmod_path() with owner_is_umask
set.

Fix it by moving the file operation out of the conditional block, so it
works in both of the cases of owner_is_umask being set or unset.

Fixes: 8b9665c29cb8 ("api.c: fix TOCTOU in cg_chmod_path())
Suggested-by: Tom Hromatka <tom.hromatka@oracle.com>
Signed-off-by: Kamalesh Babulal <kamalesh.babulal@oracle.com>
Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>