CDNS3 is a SuperSpeed (SS) USB 3.0 Dual-Role-Device (DRD) controller from
Cadence. Add support for this device, and add the required symbols into
the generic configs.
Compile-tested: apm821xx, bcm4908, imx, mpc85xx, pistachio, starfive
Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>