wil6210: support boot loader struct v0 & v1

There are 2 versions of boot loader struct: v0 and v1.
In the v1, boot loader build version added; as well as
RF status.

Support both versions.

Boot loader structure v1 has RF status; ignore RF error if firmware
not going to be loaded; driver can still be used to interact with the HW

Change-Id: I37b06b369818dce7257c53b54652ceb230a00479
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Git-commit: f1ad8c9346de80c91d7f35d4a1b0d1f2b93b3661
Git-repo: https://github.com/kvalo/ath.git


Signed-off-by: Hamad Kadmany <hkadmany@codeaurora.org>