usb: core: Add usb_set_interface_timeout API

Currently control transfer timeout is a fixed value of 5 sec.
Introduce generic api for customized timeout value which any
class driver can use.

Change-Id: I76730ad3d021f36ba9f97d91669a5c2f24c67942
Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>
Signed-off-by: Elson Roy Serrao <eserrao@codeaurora.org>