DRM MSM fixes for 6.10

Hi Rob

Here are the list of fixes for this cycle so far:

1. Fix the check for irq_idx from < 0 to == 0 as it is unsigned
2. Bring atomic_mode_set() back and do the irq assignment from there instead of the irq_enable / irq_disable pair because that leads to error messages of trying to enable irq with an invalid irq number
3. Drop duplicate entries from wb2_formats array to fix weston breakage
4. Fix to check return value of pm_runtime_get() in dp_wait_hpd_asserted

I shall remove the Draft tag after validating this tree some more on my device.

Thanks

Abhinav