defconfig: arm64: Enable USB function drivers with msmskunk

This change enables below mentioned different USB function drivers.
1. USB NCM
2. USB MTP
3. USB PTP
4. USB MIDI
5. USB Accessory
6. USB Audio Source

It also enables USB gadget state related uevent notification to user
space.

Change-Id: I4567d00bc9003bfd060cbf4547aa056053aecebc
Signed-off-by: Mayank Rana <mrana@codeaurora.org>