Merge branch 'master' of git://git.denx.de/u-boot-usb

- DWC3 improvements
- i.MX7 EHCI bugfix

diff --cc MAINTAINERS
Simple merge

diff --cc configs/avnet_ultra96_rev1_defconfig
Simple merge

diff --cc configs/xilinx_zynqmp_zc1751_xm015_dc1_defconfig
Simple merge

diff --cc configs/xilinx_zynqmp_zcu100_revC_defconfig
Simple merge

diff --cc configs/xilinx_zynqmp_zcu102_rev1_0_defconfig
Simple merge

diff --cc configs/xilinx_zynqmp_zcu102_revA_defconfig
Simple merge

diff --cc configs/xilinx_zynqmp_zcu102_revB_defconfig
Simple merge

diff --cc configs/xilinx_zynqmp_zcu104_revA_defconfig
Simple merge

diff --cc configs/xilinx_zynqmp_zcu104_revC_defconfig
Simple merge

diff --cc configs/xilinx_zynqmp_zcu106_revA_defconfig
Simple merge

diff --cc configs/xilinx_zynqmp_zcu111_revA_defconfig
Simple merge