wil6210: use msm_11ad for platform operations

wil6210 11ad driver hook to platform specific
driver so that platform specific operations of msm
are properly executed.

Need to reorder init sequence to run wil_platform_init
before pci_enable_device. Assumption is platform init
may be required before device may be enabled, for example,
to turn on platform power for 11ad chip and run
PCIe enumeration.

platform uninit should be called after
pci_disable_device because platform uninit may render
pci device non-accessible.

Change-Id: Id36d20c2dcbf8704b1c4aec9e962117960c2eefe
Signed-off-by: Hamad Kadmany <hkadmany@codeaurora.org>