[MIPS] Add RM200 with R5000 CPU to known ARC machines

RM200 with R5ks have a little bit different arcname.
Signed-off-by: NThomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

arch/mips/fw/arc/identify.c

@@ -67,6 +67,11 @@ static struct smatch mach_table[] = {
 		.liname		= "SNI RM200_PCI",
 		.type		= MACH_SNI_RM200_PCI,
 		.flags		= PROM_FLAG_DONT_FREE_TEMP,
+	}, {
+		.arcname	= "RM200PCI-R5K",
+		.liname		= "SNI RM200_PCI-R5K",
+		.type		= MACH_SNI_RM200_PCI,
+		.flags		= PROM_FLAG_DONT_FREE_TEMP,
 	}
 };