Split A_EXT parameter and added wu_wrs_i pin.#785

Merged

Silabs-ArjanB merged 2 commits intoopenhwgroup:masterfrom silabs-oysteink:silabs-oysteink_a-ext-rtl-update

Feb 16, 2023

Commits on Feb 16, 2023

Split A_EXT parameter into A_NONE, ZALRSC and A. Updated a_decoder according t othe new split A_EXT parameter.
silabs-oysteink
committed
Only setting misa.A when the full A-extension is configured.
silabs-oysteink
committed