gallium/egl: st_profiles are build time decision, treat them as such

gallium/egl: st_profiles are build time decision, treat them as such

The profiles are present depending on the defines at build time.
Drop the extra functions and feed the defines directly into the
state-tracker at build time.

v2: Drop unused variable i.

Acked-by: Chia-I Wu <olvaffe@gmail.com> (v1)
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>