* Add NVMe and XHCI USB driver fix for Raspberry Pi
Add patch which fixes NVMe read reliability and allows to compile the
XHCI USB driver (for Compute Module 4).
* Enable Broadcom XHCI driver for Compute Module 4
The BCM2711 has two USB 2.0 IPs: A Broadcom XHCI USB 2.0 controller and
a Synopsys DWC2 USB 2.0 Host/Device controller. When USB boot is used
the former is active. Make sure U-Boot has the driver built-in for that
IP.