[wlan] Refactor ConnectPhyParams

This is a prep step to consolidate the PHY config use
to support AP and Mesh roles as well as Client role.
 - Move ConnectPhyParams to wlan-common
 - Rename ConnectPhyParams to UserRadioConfig
 - Include the primary channel info.
 - Decouple FIDL-purpuse UserRadioConfig and Rust-purpose one.
   This is to prep upcoming revamping on channel structs.

Test: Build, Rust unit-tests. Client smoke.
WLAN-909

Change-Id: I3f4473eca0f0dc839efb38d430ffb039b7ba3c5e
9 files changed