Dual screen display issue

Description

When HDMI and RGB displays at the same time, the resolution of them must be the same when using the same clock source. In other words, when using HDMI clock as the parent clock of RGB, the resolution of HDMI and RGB must be the same.

Workaround

RGB can use a "vout src" clock as the parent clock to achieve independence from the HDMI process and be unaffected by it. The issue has been resolved in the driver.