Build: Disable FLIH test temporarily

There is a known issue on FLIH, which will block Open CI.
So disable FLIH tests temporarily.

This patch shall be reverted once the issue got fixed.

Signed-off-by: Xinyu Zhang <xinyu.zhang@arm.com>
Change-Id: Id2fc3062ec51ebbbeef5627cb6409950320bde19
1 file changed