Fixes make test errors with clang compiler on aarch64

Fixes make test errors with clang compiler on aarch64

(VAPI_*BIN).d targets didnt have fake.api.vapi.h* as dependencies
this causes the compilation to proceed before the python script
generates the header files.
Explicit linking of stdc++ is required for clang as errors like
undefined reference to 'new operator' pop up.

Change-Id: I3ca0ef048f392c4a032160ce0e4f7ae759f4c79d
Signed-off-by: Sirshak Das <sirshak.das@arm.com>
Reviewed-by: Brian Brooks <brian.brooks@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>