ENGR00290337 ipuv3: Setup pixel clock tree after ipu reset
When the ipu pixel clocks are initialized, the default pixel clock rate
will be calucated according to the present ipu register setting which
is likely set by a bootloader.
But these registers will be reset by the ipu reset function.
If the default pixel clock rate is the same to what is requested later,
the clk_set_rate function will treat this case as pixel clock unchanged.
Move the pixel clock setup function after the ipu reset function to
resolve this issue