arm64: dts: amd: Fix-up for ccn504 and kcs nodes

This is a fix-up patch based on the review comment from
Arnd regarding:
    * fix ccn504 address in the node name
    * remove kcs interrupt-name

Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Olof Johansson <olof@lixom.net>