This patch fix the following clang warning:
[clang] drivers/phy/rockchip/phy-rockchip-inno-usb2.c:1458:2:
warning: 3rd function call argument is an uninitialized value
Change-Id: Ia4a556da346323e5bc081ff1bbf267911fcdc645
Signed-off-by: William Wu <william.wu@rock-chips.com>