x86/mce/AMD: Update sysfs bank names for SMCA systems

Define a bank's sysfs filename based on its IP type and InstanceId.

Credits go to Aravind  for:
 * The general idea and proto- get_name().
 * Defining smca_umc_block_names[] and buf_mcatype[].

Signed-off-by: Yazen Ghannam <Yazen.Ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Aravind Gopalakrishnan <aravindksg.lkml@gmail.com>
Link: http://lkml.kernel.org/r/1473193490-3291-2-git-send-email-Yazen.Ghannam@amd.com


Signed-off-by: Thomas Gleixner <tglx@linutronix.de>