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: I1bbbdfc8febd52aab35c66a18dc8a03cbf4d36d2
(cherry picked from commit 150fab699ca9a2e681f1decad468ae38dfd769b2)
4 files changed