linux-imx

LF-176 ARM: imx: mach-imx6q: Revert "ARM: imx: correct the enet_clk_ref clock string"

enet_clk_ref is the same clock as ptp for i.MX6qdl platform,
but dtsi only define ptp clock that source from soc internal
anatop clock, and imx6q clock driver already register "enet_ref"
clock lookup for the ptp clock, so keep the con_id string as
"enet_ref" for clk_get_sys().

This reverts commit a3990871b98587f53548e769c23fda5c2644063c.

Signed-off-by: Fugang Duan <fugang.duan@nxp.com>