phy: for 4.21

 *) Change phy set_mode ops to take both mode and setmode as arguments
 *) Add phy_configure() and phy_validate() API's mostly used for MIPI D-PHY
 *) Add helpers to get default values of parameters define in MIPI D-PHY spec
 *) Add driver for TI's CPSW Port PHY Interface Mode selection
 *) Add driver for Cadence Sierra PHY used with USB and PCIe
 *) Add driver for Freescale i.MX8MQ USB3 PHY
 *) Fixes QMP PHY bindings to allow the clocks provided by the PHY to be
    pointed at in device tree
 *) Fix for using fully specified regions (in device tree) for configuring
    the second lane in dual lane PHYs in QMP PHY
 *) Add support for Allwinner H6 USB2 PHY in phy-sun4i-usb driver
 *) Update phy-rcar-gen3-usb driver to follow the hardware manual
 *) Add support for fine grained power management in mapphone-mdm6600 driver

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
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