refactor(neoverse-rd): rename nrd_plat_v2.c to align with convention

Header files for N2 CPU based platforms currently use "2" as
a suffix. Rename the common source file, nrd_plat_v2.c used by these
platforms to nrd_plat2.c to align with this convention.

Signed-off-by: Rohit Mathew <rohit.mathew@arm.com>
Change-Id: I36b138a0a4dff8087e52f0f2cbc21abc03a793ad
2 files changed