HSD #14015549971: usb: dwc3: of-simple:Add support for Intel Agilex5

commit c1eece53b529de2b161435694415779137cd1f49 from
https://github.com/altera-opensource/linux-socfpga.git



Add compatible string to use this generic glue layer to support
Intel Agilex5 platform's dwc3 controller.

Signed-off-by: Adrian Ng Ho Yin <adrian.ho.yin.ng@intel.com>
Signed-off-by: Liwei Song <liwei.song@windriver.com>