refactor(build): move SVE_VECTOR_LEN flag to add_defines section

Presently, we have an explicit section to add definitions, wherein
we evaluate the definitions after being overwritten by the platform.

To keep it aligned with this pattern, SVE_VECTOR_LEN is moved here.

Change-Id: Ia3373d954a7ee97980fe72d5a069e202352f25b1
Signed-off-by: Jayanth Dodderi Chidanand <jayanthdodderi.chidanand@arm.com>
1 file changed