edison: move audio/usb to audio/generic/usb

BUG=none
Change-Id: I46171fe26d2c34da07e97f3172d8cd218bde8b4e
Tracked-On: https://jira01.devtools.intel.com/browse/BP-175
Signed-off-by: teng jin chung <jin.chung.teng@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
1 file changed