coverity: exclude neoverse_rd ras files

As the ras files within neoverse_rd are not being utilized as of now,
add exlusion for these files in the coverity build

Signed-off-by: Rohit Mathew <rohit.mathew@arm.com>
Change-Id: Ia43605e6bed38fbedaa209cb3a298ed4c75329a9
1 file changed