ARM: dts: lpc32xx: phy3250: setup LCD controller to panel interface

The change adds description of Sharp LQ035Q7DB03 3.5" 320x240 TFT panel,
which is connected to Phytec phyCORE-LPC3250 board, ARM PrimeCell PL111
LCD controller on NXP LPC3250 SoC gets its configuration appropriately
to support graphics output to the panel.

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>