Presets for Android added which reduce required user flags.
Build now warns at configuration stage if common,
incompatible or sub-optimal settings are requested e.g.
Kleidi enabled without suitable sub-feature flag being
passed.

Co-authored-by: Yunus Kalkan <yunus.kalkan@arm.com>
Co-authored-by: Liam Barry <liam.barry@arm.com>

Signed-off-by: Liam Barry <liam.barry@arm.com>
Change-Id: Ifcfe9e09b289d7b474f629c26d00c700f6f2bf8b
Signed-off-by: Kshitij Sisodia <kshitij.sisodia@arm.com>