[PATCH 0/2] ufs: add delay for VCC ramp-up stability

[ed.tsai at mediatek.com]

Hi,

This patch series resolves a link stability issue found on our certain
platforms where the VCC regulator has a slow ramp-up time.

To fix this, a delay is needed after VCC is turned on. The solution is
implemented in two parts:

1. Introduced the new host quriks, UFSHCD_QUIRK_VCC_ON_DELAY.
2. Applied in our new platform with UFS5 device to enusre the VCC is
   ready before we enable the clocks.