Merge remote-tracking branch 'stable/linux-4.19.y' into rpi-4.19.y

diff --cc arch/arm64/mm/init.c
Simple merge

diff --cc drivers/gpio/gpiolib.c
Simple merge

diff --cc drivers/media/common/videobuf2/videobuf2-core.c
Simple merge

diff --cc drivers/net/ethernet/broadcom/genet/bcmgenet.c
Simple merge

diff --cc drivers/usb/core/hub.c
Simple merge