MIPS: Restore Au1300 support

The Au1300, at least the one I have to test, uses the NetLogic vendor
ID, but commit 95b8a5e0 ("MIPS: Remove NETLOGIC support") also
dropped Au1300 detection.  Restore Au1300 detection.

Tested on DB1300 with Au1380 chip.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

arch/mips/kernel/cpu-probe.c

@@ -1502,6 +1502,10 @@ static inline void cpu_probe_alchemy(struct cpuinfo_mips *c, unsigned int cpu)
 			break;
 		}
 		break;
+	case PRID_IMP_NETLOGIC_AU13XX:
+		c->cputype = CPU_ALCHEMY;
+		__cpu_name[cpu] = "Au1300";
+		break;
 	}
 }
 
@@ -1863,6 +1867,7 @@ void cpu_probe(void)
 		cpu_probe_mips(c, cpu);
 		break;
 	case PRID_COMP_ALCHEMY:
+	case PRID_COMP_NETLOGIC:
 		cpu_probe_alchemy(c, cpu);
 		break;
 	case PRID_COMP_SIBYTE: