[TF-A] Linker errors with ENABLE_LTO and LD overriding

Hi,

We are seeing build failures on platforms having ENABLE_LTO and LD overridden explicitly via build command. Following patch (which is intended to support ENABLE_LTO from platform makefile) is contributing to the build errors.

Patch: build: allow platform makefiles to configure `ENABLE_LTO` Commit id: fa402f38b2c326f33d0989450ca62c1002d7d062 Change id: Ie1f73352eb51fb2ceb2385232336312216ef87fc

As per TF-A documentation, linker can be overridden using LD variable, which is broken in our case. Doc ref: https://trustedfirmware-a.readthedocs.io/en/latest/getting_started/initial-b...

Regards, Maheedhar.