Since commit
3c997c457a ("configs/zynqmp_zcu106_defconfig:
bump to Xilinx 2022.2"), we're using U-Boot version Xilinx 2022.2,
which already carries the psu_init_gpl.c, causing the build to fail as
our patch doesn't apply.
Fix this by dropping the no longer needed patch.
Fixes: 3c997c457a ("configs/zynqmp_zcu106_defconfig: bump to Xilinx 2022.2")
Signed-off-by: Neal Frager <neal.frager@amd.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>