Switch the imx_clk_gate4_flags() function to clk_hw based API, rename
accordingly and add a macro for clk based legacy. This allows us to
move closer to a clear split between consumer and provider clk APIs.
Signed-off-by: NAnson Huang <Anson.Huang@nxp.com>
Reviewed-by: NAbel Vesa <abel.vesa@nxp.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>