EDAC/amd64: Add support for AMD family 1Ah-based newer models

Add support for family 1Ah-based models 50h-57h, 90h-9Fh, A0h-AFh, and
C0h-C7h.

Also, raise the maximum memory controllers number as those machines
support that many.

Signed-off-by: Avadhut Naik <avadhut.naik@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/20250916203242.1281036-1-avadhut.naik@amd.com