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Removes unused source code for BL2 and BL31 in platform.mk.
Clean-up unused header files, syntax fixes, and alphabetical
sorting post-refactoring
Signed-off-by: Hadi Asyrafi <muhammad.hadi.asyrafi.abdul.halim@intel.com>
Change-Id: Ie5ea9b4d3abdb0187cddeb04d2fcfb51fbe5c4dd