usb: phy: rename <linux/usb/usb_phy_gen_xceiv.h> to <linux/usb/usb_phy_generic.h>

now that all functions match the driver name,
the only missing piece is to rename the header
file itself.

Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --cc arch/arm/mach-omap2/board-omap3beagle.c
Simple merge

diff --cc arch/arm/mach-omap2/usb-host.c
Simple merge

diff --cc drivers/usb/dwc3/dwc3-exynos.c
Simple merge

diff --cc drivers/usb/dwc3/dwc3-pci.c
Simple merge

diff --cc drivers/usb/musb/am35x.c
Simple merge

diff --cc drivers/usb/musb/blackfin.c
Simple merge

diff --cc drivers/usb/musb/da8xx.c
Simple merge

diff --cc drivers/usb/musb/davinci.c
Simple merge

diff --cc drivers/usb/musb/musb_dsps.c
Simple merge

diff --cc drivers/usb/musb/tusb6010.c
Simple merge

diff --cc drivers/usb/phy/phy-am335x.c
Simple merge

diff --cc drivers/usb/phy/phy-generic.c
Simple merge

diff --cc drivers/usb/phy/phy-generic.h
Simple merge

diff --cc drivers/usb/phy/phy-keystone.c
Simple merge

diff --cc include/linux/usb/usb_phy_generic.h
Simple merge