arch/arm: add two new non-cortex-based armv8.2a cores

arch/arm: add two new non-cortex-based armv8.2a cores

The Neoverse N1 CPU was supported in GCC earlier through the codename Ares [1].

[1] https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=37cf0ddecfd1eb5c6852a44135af5a92e5103931

Build tested:
https://gitlab.com/kubu93/buildroot/pipelines/60318953

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
[Romain: rename BR2_ares to BR2_neoverse_n1]
Signed-off-by: Romain Naour <romain.naour@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Giulio Benetti <giulio.benetti@micronovasrl.com>
[Arnout: 'aka' instead of 'alias']
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>