[MIPS] Alchemy: Au1210/Au1250 CPU support

This patch adds IDs for new Au1200 variants: Au1210 and Au1250.
They are essentially identical to the Au1200 except for the Au1210
which has a different SoC-ID in the PRId register [bits 31:24].
The Au1250 is a "Au1200 V0.2".

Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/mm/c-r4k.c

@@ -980,6 +980,8 @@ static void __init probe_pcache(void)
 	case CPU_AU1100:
 	case CPU_AU1550:
 	case CPU_AU1200:
+	case CPU_AU1210:
+	case CPU_AU1250:
 		c->icache.flags |= MIPS_CACHE_IC_F_DC;
 		break;
 	}

arch/mips/mm/tlbex.c

@@ -917,6 +917,8 @@ static void __init build_tlb_write_entry(u32 **p, struct label **l,
 	case CPU_AU1500:
 	case CPU_AU1550:
 	case CPU_AU1200:
+	case CPU_AU1210:
+	case CPU_AU1250:
 	case CPU_PR4450:
 		i_nop(p);
 		tlbw(p);