oprofile, s390: Add support for IBM zEnterprise EC12

This patch adds support for the latest release of the
IBM mainframe series - the IBM zEnterprise EC12 (zEC12).

The CPU measurement facility didn't change.  So only the new CPU type
has to be tolerated.
Signed-off-by: Andreas Krebbel <krebbel@linux.vnet.ibm.com>
Signed-off-by: Robert Richter <rric@kernel.org>

arch/s390/oprofile/init.c

@@ -440,6 +440,7 @@ static int oprofile_hwsampler_init(struct oprofile_operations *ops)
 		switch (id.machine) {
 		case 0x2097: case 0x2098: ops->cpu_type = "s390/z10"; break;
 		case 0x2817: case 0x2818: ops->cpu_type = "s390/z196"; break;
+		case 0x2827:              ops->cpu_type = "s390/zEC12"; break;
 		default: return -ENODEV;
 		}
 	}