refactor(neoverse-rd): define naming convention for CSS macros

As part of the refactoring for the second generation of platforms,
introduce a naming convention for macros within nrd_css_def2.h and
nrd_css_fw_def2.h. All macros, except those related to page table
entries, must adhere to the format NRD_CSS_<name>. Page table entry
macros are handled separately and are not part of this patch.

Signed-off-by: Rohit Mathew <rohit.mathew@arm.com>
Change-Id: Ib168320e12f06cd034342c011909896de463ab27
7 files changed