lcd: ancora: Adjust porch values for rev. 2 panels

 * Newer Android versions are more intensive on the display
   and might cause underflow (blue flashing) under stress
   situations. Adjust the porch values to minimize this.

   Values might not be 100% optimal though, but we can finetune
   it later if needed.
Merge pull request #1 from arco/cm-11.0

lcd: ancora: Adjust porch values for rev. 2 panels