The driver uses only GPIO Descriptor Consumer Interface so include
proper header.  This fixes compile test failures (e.g. on i386):

    drivers/usb/phy/phy-tegra-usb.c: In function ‘ulpi_phy_power_on’:
    drivers/usb/phy/phy-tegra-usb.c:695:2: error:
        implicit declaration of function ‘gpiod_set_value_cansleep’ [-Werror=implicit-function-declaration]
    drivers/usb/phy/phy-tegra-usb.c: In function ‘tegra_usb_phy_probe’:
    drivers/usb/phy/phy-tegra-usb.c:1167:11: error:
        implicit declaration of function ‘devm_gpiod_get_from_of_node’ [-Werror=implicit-function-declaration]
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/1583234960-24909-1-git-send-email-krzk@kernel.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>