USB: gadget: Update Freescale UDC entry in MAINTAINERS

Change the F entry for file rename, and make it also cover fsl_qe_udc
driver.  Update the name accordingly.

Signed-off-by: Li Yang <leoli@freescale.com>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>