qcacmn: Fix high latency during BTM roaming

While processing the WMA_ROAM_OFFLOAD_SYNCH_IND event, The
driver takes nearly 150 to 200 msec time to just write fatal,
error and info messages to the kmsg log buffer. Also to get
tx power supplicant runs another thread while roaming. These
cause more latency(300ms) to send WMA_ROAM_OFFLOAD_SYNCH_CNF
message to fw. To decrease roam latency, the driver should
write the only necessary error message to kmsg buffer.

Fix is to change irrelevant fatal, error and info message type
to debug.

Change-Id: I521104c692eb42112ce2528c15d09785ff3470b6
CRs-Fixed: 2261592
9 files changed