rsi: fix for sdio interface setup in 9116

Issue: RS-9116 Card is not responding after firmware got loaded.

Root cause: After firmware got loaded, we need to reset the program
counter and few device specific registers. Those registers were not
resetted properly.

Fix: Properly resetting those registers.

Signed-off-by: Ganapathi Kondraju <ganapathirajukondraju@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>