[build] Fix the building of the SVE2 sources
So far, due to the faulty handling of the INTRINSICCV_ENABLE_SVE2 and INTRINSICCV_ENABLE_SVE2_SELECTIVELY options it was impossible to build the SVE2 implementations.
So far, due to the faulty handling of the INTRINSICCV_ENABLE_SVE2 and INTRINSICCV_ENABLE_SVE2_SELECTIVELY options it was impossible to build the SVE2 implementations.