intel/compiler/elk: Replace the usage of ELK_VARYING_SLOT_PNTC with VARYING_SLOT_PNTC
What does this MR do and why?
intel/compiler/elk: Replace the usage of ELK_VARYING_SLOT_PNTC with VARYING_SLOT_PNTC
When ELK_VARYING_SLOT_PNTC is introduce with name BRW_VERT_RESULT_PNTC at commit
https://gitlab.freedesktop.org/mesa/mesa/-/commit/43af02ac731dac7d80f7e47feb0c80e4da156769
there is no VARYING_SLOT_PNTC, now we have VARYING_SLOT_PNTC, so take use of it.
Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
cc @cmarcelo