linux-wandboard

MLK-16469: clk-imx8qxp: Fix GPT clock hierarchy

This is a change similar to:

'commit 01fdf7bf572b ("MLK-16281-2: clk-imx8qm: Fix GPT clock hierarchy")'
    There are five gpt modules on imx8qm (gpt0 .. gpt4).
    Of these, gpt2 and gpt4 clock hierarchies are inconsistent
    with the rest.
    Having the per clocks (gpt_hf_clk and gpt_clk) as children of the
    peripheral access clock (ipg_s) and bus sync slave clock
    (ipg_slv_clk)
    ensures that the latter are enabled when the driver enables the
    gpt_clk
    (or hf).
    This patch reconciles these two gpt clock trees with the rest.

    Before:

     gpt_2_div
        gpt_2_hf_clk
        gpt_2_ipg_s_clk
           gpt_2_ipg_slv_clk
              gpt_2_clk

     gpt_4_div
        gpt_4_hf_clk
        gpt_4_clk
        gpt_4_ipg_s_clk
           gpt_4_ipg_slv_clk

    After:

     gpt_2_div
        gpt_2_ipg_s_clk
           gpt_2_ipg_slv_clk
              gpt_2_hf_clk
              gpt_2_clk

     gpt_4_div
        gpt_4_ipg_s_clk
           gpt_4_ipg_slv_clk
              gpt_4_hf_clk
              gpt_4_clk

Apply this change  for imx8qxp also which has the same inconsistency
regarding the gpt clocks.
(BuildInfo: SCFW 9e9f6ec6, IMX-MKIMAGE imx8-mu, ATF 0)

Reviewed-by: Anson Huang <anson.huang@nxp.com>
Signed-off-by: Adriana Reus <adriana.reus@nxp.com>