In dp_service_srngs, the current logic assumes that WBM2SWRELEASE ring
number as obtained from interrupt_ctx->tx_mask matches the index of
soc->tx_comp[] array. However this may not be true, esp for HMT.
Add logic to fix the same.
Use a separate macro to enable use of single TX ring.
Change-Id: I1bee27b800ad4e4ab1a1fe5e2b01b5b43acfe1f7
CRs-Fixed: 2984362