rasdaemon: Add error decoding for MCA_CTL_SMU extended bits

rasdaemon: Add error decoding for MCA_CTL_SMU extended bits

Enable error decoding support for the newly added extended
error bit descriptions from MCA_CTL_SMU.
b'0:11 can be decoded from existing array smca_smu2_mce_desc.
Define a function to append the newly defined b'58:62 to the
smca_smu2_mce_desc. This reduces the maintaining Reserved bits
from b'12:57 in the code.

Signed-off-by: Sathya Priya Kumar <sathyapriya.k@amd.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>