feat(synquacer): add TBBR support

enable Trusted-Boot for Synquacer platform.

Cc: Sumit Garg <sumit.garg@linaro.org>
Cc: Masahisa Kojima <masahisa.kojima@linaro.org>
Cc: Manish V Badarkhe <manish.badarkhe@arm.com>
Cc: Leonardo Sandoval <leonardo.sandoval@linaro.org>
Change-Id: I2608b4d573d95d55da1fc5544333e0dbf3f763f2
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>