usb: gadget: Add flag to determine gadget controller

Add a flag is_chipidea to determine whether the USB device
controller is ChipIdea or not. Set the flag to true during
CI UDC probe.

Change-Id: I57d54345fe2a655191c8d66a46e906a61e34a3e4
Signed-off-by: Ajay Agarwal <ajaya@codeaurora.org>
2 files changed