tree 1a80cd99748a3b810f26c2728c3ca09350b053b8
parent bc57dbe9331c3a4c6d9f14345ef853ff5fb36978
author Pankaj Gupta <pankaj.gupta@nxp.com> 1611675256 +0530
committer Pankaj Gupta <pankaj.gupta@nxp.com> 1616559571 +0530

tbbr-tools: enable override TRUSTED_KEY_CERT

Platforms, which requires additional images to be
verified using TBBR; such that their key certificate
is tied to TRUSTED_KEY_CERT.

For such platforms, if make commands runs twice:
 - Once with targets as bl2 & fip.bin, and
 - Again to build the target as the additional image.

then, if path to the TRUSTED_KEY_CERT varies in the
makefile with make-target of the additional image, then
there would be two location where "trusted_key.crt" will
be created.

This patch helps overriding the TRUSTED_KEY_CERT from any .mk
in the platform's makefile structure.

Signed-off-by: Pankaj Gupta <pankaj.gupta@nxp.com>
Change-Id: I775a2c409035504b21b0bbe5a4f9046898163eed