build(corstone1000): add CORSTONE1000_WITH_BL32 preprocessor flag

This change includes adding new CORSTONE1000_WITH_BL32 preprocessor
flag on the basis of NEED_BL32 flag. This flag allows us to run the
TF-A with or without loading BL32 image. This feature is required to
add the support of Corstone-1000 FVP in TF-A open CI.
After this, we can run the TF-A tftf tests with or without
executing BL32 image, which is optee in case of Corstone-1000.

Signed-off-by: Harsimran Singh Tungal <harsimransingh.tungal@arm.com>
Change-Id: Idacbd3883473473841481a2032314db8c9715b1f
2 files changed