sparc64: Add handler for "Memory Corruption Detected" trap

M7 and newer processors add a "Memory corruption Detected" trap with
the addition of ADI feature. This trap is vectored into kernel by HV
through resumable error trap with error attribute for the resumable
error set to 0x00000800.

Signed-off-by: Khalid Aziz <khalid.aziz@oracle.com>
Cc: Khalid Aziz <khalid@gonehiking.org>
Reviewed-by: Anthony Yznaga <anthony.yznaga@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>