[MIPS] WRPPMC: Fix build.

Using another systems defines is a safe way to get your code broken by
accident when that system is removed.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/gt64120/wrppmc/setup.c b/arch/mips/gt64120/wrppmc/setup.c
index 121188d..ea96552 100644
--- a/arch/mips/gt64120/wrppmc/setup.c
+++ b/arch/mips/gt64120/wrppmc/setup.c
@@ -158,8 +158,8 @@
  */
 void __init prom_init(void)
 {
-	mips_machgroup = MACH_GROUP_GALILEO;
-	mips_machtype = MACH_EV64120A;
+	mips_machgroup = MACH_GROUP_WINDRIVER;
+	mips_machtype = MACH_WRPPMC;
 
 	add_memory_region(WRPPMC_SDRAM_SCS0_BASE, WRPPMC_SDRAM_SCS0_SIZE, BOOT_MEM_RAM);
 	add_memory_region(WRPPMC_BOOTROM_BASE, WRPPMC_BOOTROM_SIZE, BOOT_MEM_ROM_DATA);