The pgc_mlmix shows a power-domain@24, but the reg value is
IMX8MP_POWER_DOMAIN_MLMIX which is set to 4.
The stuff after the @ symbol should match the stuff referenced
by 'reg' so reorder the pgc_mlmix so it to appear as power-domain@4.
Fixes: 834464c8504c ("arm64: dts: imx8mp: add mlmix power domain")
Fixes: 4bedc468b725 ("arm64: dts: imx8mp: Add NPU Node")
Signed-off-by: Adam Ford <aford173@xxxxxxxxx>