linux-phytec-ti

HACK: ARM: dts: am437x-gp-evm: Remove DMA entry for UART3 node

It seems that USART instances of AM437x SoC seems to trigger DMA
pre-maturely and result in underflow condition leading to data
corruption. Therefore disable DMA on UART3 which is a USART instance.
UART0 is unaffected as its not USART but a UART instance.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>