cnss2: Sending host feature list to FW

Update host capability message to inform host capability,
FW uses this information to decode host enabled feature list.
Enable clock selection feature when xo_clk_gpio is set in DTS.

Change-Id: Iea7e5863c67a29cfc9ff1fa7c654aeef6da48524
Signed-off-by: Kai Liu <kaliu@codeaurora.org>