misc: amd-sbi: Add support for Turin platform

misc: amd-sbi: Add support for Turin platform

- RMI registers addresses in AMD new platforms are 2 bytes,
  on previous processors the address size is 1 byte.
- Implement logic to identify register address size at runtime.
- The identification is done in first transaction using the
  Revision register.
- The revision register can be read using 1 byte in both, older and
  newer platforms.
- However, sending 1 byte on later platform can cause unrecoverable error.

Reviewed-by: Naveen Krishna Chatradhi <naveenkrishna.chatradhi@amd.com>
Signed-off-by: Akshay Gupta <akshay.gupta@amd.com>
Link: https://patch.msgid.link/20250915103649.1705078-3-akshay.gupta@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>