arm64: dts: taimen: To avoid AOD blinking issues, changed some related commands

As a result of discussion among LGD,LGE and Goole, we are supposed to chage some initial commands

*AoD blinking issue.(history and status)
- LGD proposed sequence change(adding ‘Normal mode 30hz’)
- It was to apply to Apr. MR but now on-hold due to a side effect (Purple-colored AoD screen)
- LGD confirmed it’s caused by not enough delay time after adding normal mode 30hz.
- The side effect disappeared by increasing delay time (52ms ->  100ms)
- Google/LGE/LGD teams reviewed the mechanism and agreed that the issue can be solved by this improvement action
- Google need to make internal decision if this delay can be accepted
- This commit is changing delay time from 52ms to 102 ms

*On-off Flickering issue.(history and status)
- LGD proposed two solutions
  1) Rolling back from 150ms to 60ms
  2) Increasing interval width to have margin
- #1)solution was applied to Taimen  Feb/’18 MR.
- There was field issue with V30 which is using same panel as Taimen.
- LGD found it was caused by not enough interval width margin in cold weather condition during winter.
- From LGD’s tests, the defects could be duplicated below 3000ns condition.
- LGE/LGD decided to change to 4000ns(including margin) and have applied to V30 MR
- By this change, all defects became ok without any side effect.
- Taimen keeps rejected in LGE’s IQC due to this problem
- This commit is changing initial code giving 4000ns of interval width
- And in addtion, there will be same change in next bootloader

Bug: 68114567
Bug: 73290041
Bug: 74058011

Signed-off-by: ch.han <ch.han@lge.com>