rsi: add in missing RSI_FSM_STATES into array fsm_state

Two recent commits added new RSI_FSM_STATES (namely FSM_FW_NOT_LOADED
and FSM_COMMON_DEV_PARAMS_SENT) and the corresponding table fsm_state
was not updated to match. This can lead to an array overrun when
accessing the latter two states in fsm_state. Fix this by adding in
the missing states.

Detected by CoverityScan, CID#1398379 ("Illegal address computation")

Fixes: 9920322c ("rsi: add tx frame for common device configuration")
Fixes: 015e3674 ("rsi: Register interrupt handler before firmware load")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>