[SYCL] Add defines for built-in transition (intel#10026)

We are going to change built-ins implementation from templates to
overloads according to KhronosGroup/SYCL-Docs#428. This patch is
intended to unblock the parallel transition of the different groups of
built-ins.

Co-authored-by: Steffen Larsen <steffen.larsen@intel.com>

Author: KornevNikita