arm64: cputype: Add Kryo2xx series of the Gold and Silver CPU parts

Add part numbers for Kryo2xx seriels of Gold and Silver CPUs.

Change-Id: I11d2e09483075f2496415cb64fb16d2f599f9f7f
Signed-off-by: Trilok Soni <tsoni@codeaurora.org>
[gkohli@codeaurora.org: resolve trivial merge conflicts]
Signed-off-by: Gaurav Kohli <gkohli@codeaurora.org>
Signed-off-by: Chandra Sai Chidipudi <cchidipu@codeaurora.org>