tc: update RSS binaries, flash layout, and signing

Use updated RSS binaries to build and run TC with new signing methods
for AP BL1 and fiptool update to build flash image with new layout.

Updating rss_flash to host_flash_fip for a better reflection
of new flash layout since this now includes AP fip.bin.

Signed-off-by: Lauren Wehrmeister <lauren.wehrmeister@arm.com>
Change-Id: I0179d9799ef28f860b436dec5fccd04a71f102dc
4 files changed