wifi: Add the various iface object implementation

This CL adds the implementation classes for the various iface HIDL
interfaces defined. These classes implement the
|getName| & |getType| methods in the Iface HIDL interface.

Integration of these objects with WifiChip class is implemented in the
next CL.

Bug: 31943042
Test: Compiles
Change-Id: I219afd6441e15c76cf7c61f7bcd2b3568dba2b98
10 files changed