msm: camera: Improve logging capability in kmd drivers

Adds new log tags to segregate logs across kernel drivers.
The change adds tags to track a request(CAM_REQ),
performance logs(CAM_PERF), memory manager(CAM_MEM) &
irq controller(CAM_IRQ_CTRL) events.

Change-Id: Id6c8dc9403d711e02c171a393ddcdce11c506bba
Signed-off-by: Karthik Anantha Ram <kartanan@codeaurora.org>