ath10k: Populate HW params, WMI and HTT versions for WCN3990

firmware-5.bin file for WCN3990 contains just WMI and HTT versions and
firmware is loaded by PIL.

This change, populate the hw params for WCN3990 and parse
firmware-5.bin file for WMI and HTT versions.

CRs-Fixed: 2002151
Change-Id: Ic65d3696e9546fd428e608f4738e9fe53d61338f
Signed-off-by: Rajeev Kumar Sirasanagandla <rsirasan@codeaurora.org>