[RESEND 1/4] clk: imx7d: Add USB clock information

[Stephen Boyd]

Quoting Abel Vesa (2018-03-27 23:46:35)
> From: Peter Chen <peter.chen at freescale.com>
> 
> Add USB clock information, the pll_usb_main_clk is USB_PLL at CCM
> which is the output of USBOTG2 PHY.
> 
> Signed-off-by: Peter Chen <peter.chen at freescale.com>
> Signed-off-by: Irina Tirdea <irina.tirdea at nxp.com>
> Signed-off-by: Abel Vesa <abel.vesa at nxp.com>
> ---

Applied to clk-next