Add UEFI image extra properties for CentOS image for aarch64
Add UEFI image extra properties for CentOS image for aarch64

Add extra properties for CentOS image when using aarch64
architecture with UEFI boot mode

Signed-off-by: Delia Popescu <07e7c835febbe1eb964423ba1261e99da10fe250@enea.com>
Change-Id: Ie8aa7482627cbb3c31c6c72a31a0e37e86a409c4

opnfv/functest,opnfv/functest,mywulin/functest,mywulin/functest