ci: add cpu extensions test to cover all extensions

Change-Id: I27bdc15009f5037b7a7a437f65e14f6e57b0db4c
Signed-off-by: Manish Pandey <manish.pandey2@arm.com>
(cherry picked from commit e7cc1400694d066efd5d52a7e5e14d3ffac34adf)
2 files changed