cnss2: Collect firmware dump after SMMU fault happens

Currently, after enabling SMMU stage 1, SMMU driver will panic by
default if there is a SMMU fault. Config SMMU driver not to panic
for WLAN so that CNSS driver is able to force device enter RDDM
mode and collect firmware dump after SMMU fault.

Change-Id: Ie457873210103eb4c4b5f4a68f0c08fe8a33fc80
Signed-off-by: Yue Ma <yuem@codeaurora.org>