fix(xilinx): miscellaneous fixes for xilinx platforms

This patch gathers miscellaneous minor fixes to the xilinx
platforms like tabs for indentation and misra 10.1 warnings.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@xilinx.com>
Change-Id: I4cdb89ffec7d5abc64e065ed5b5e5d10b30ab9f9