nir: fix build at -Og
At -Og with gcc 12.1, it fails to compile:
../mesa-22.1.3/src/compiler/nir/nir_inline_helpers.h: In function ‘nir_opt_move_block’: ../mesa-22.1.3/src/compiler/nir/nir_opt_move.c:55:1: error: inlining failed in call to always_inline ‘src_is_ssa’: indirect function call with a yet undetermined callee src_is_ssa(nir_src *src, void *state) ^~~~~~~~~~
Remove 'ALWAYS_INLINE' for function src_is_ssa.
Signed-off-by: Kai Kang kai.7.kang@gmail.com