Add FWU Multi Bank Update support. This reads the platform metadata
and update the FIP base address so that BL2 can load correct BL3X
based on the boot index.
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: I5d96972bc4b3b9a12a8157117e53a05da5ce89f6
Signed-off-by: Masami Hiramatsu <masami.hiramatsu@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>