feat(versal): add UART1 as console

Currently only UART0 is handled as console device, fix the
code to support UART1 as console also.

Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@xilinx.com>
Change-Id: Ifcd3c331cf6ce4afb0074357c92fc4addb9438b6