fix(build): remove handling of mandatory options

With commit@f5211420b(refactor(cpufeat): refactor arch feature build
options all mandatory options are enabled with
'make_helpers/arch_features.mk' so avoid enabling of mandatory features
in platform makefile.

Use correct Arch Major/Minor to get all the mandatory features enabled
by default.

Change-Id: Ia214aa75dc9caea949f697ecafb1ef1812c6d899
Signed-off-by: Govindraj Raja <govindraj.raja@arm.com>
1 file changed