[AMDGPU][SDAG] Add missing cases for SI_INDIRECT_SRC/DST (#170323)
Before this patch, `insertelement/extractelement` with dynamic indices
would
fail to select with `-O0` for vector 32-bit element types with sizes 3,
5, 6 and 7,
which did not map to a `SI_INDIRECT_SRC/DST` pattern.
Other "weird" sizes bigger than 8 (like 13) are properly handled
already.
To solve this issue we add the missing patterns for the problematic
sizes.
Solves SWDEV-568862