MLK-13910: ARM: imx7d: clk: correct enet clock CCGR register offset

MLK-13910: ARM: imx7d: clk: correct enet clock CCGR register offset

Correct enet clock CCGR register offset.

CCGR6: IMX7D_ENET_AXI_ROOT_CLK (enet1 enet2 bus clocks)
CCGR112: IMX7D_ENET1_TIME_ROOT_CLK, IMX7D_ENET1_IPG_ROOT_CLK
CCGR113: IMX7D_ENET2_TIME_ROOT_CLK, IMX7D_ENET2_IPG_ROOT_CLK

IMX7D_ENET_PHY_REF_ROOT_DIV supply clock for PHY, no gate after the clock, its parent
clcok root has gate.
IMX7D_ENET1_REF_ROOT_DIV/IMX7D_ENET2_REF_ROOT_DIV supply clocks for enet IPG_CLK_RMII,
no gate after the clock, its parent clock root has gate.

IMX7D_PLL_ENET_MAIN_125M_CLK (anatop pll) supply clock for enet RGMII tx_clk.

Update copyright information.

Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Adrian Alonso <adrian.alonso@nxp.com>