wil6210: trace support

Trace the following:
- WMI cmd/event
- log events
- interrupts
- Tx/Rx

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Git-commit: 98658095623109bdace46f21bece028c904fb900
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git


Signed-off-by: Liron Kuch <lkuch@codeaurora.org>