Build: Exchange RAM FS patches with build config

Remove patches enabling ITS_RAM_FS and PS_RAM_FS for ci testing.
Enable these options through build config.

Signed-off-by: Gabor Toth <gabor.toth@arm.com>
Change-Id: I5fee7d0c8434ec6e7027bb4980ce5ebf133b5fad
4 files changed