r300: add rv530 pci id for the t60p laptop

src/mesa/drivers/dri/radeon/radeon_chipset.h

@@ -146,6 +146,9 @@
 #define PCI_CHIP_RV410_5E4C		0x5E4C
 #define PCI_CHIP_RV410_5E4D		0x5E4D
 #define PCI_CHIP_RV410_5E4F		0x5E4F
+
+#define PCI_CHIP_RV530_71C4             0x71C4
+
 #define PCI_CHIP_RS350_7834		0x7834
 #define PCI_CHIP_RS350_7835		0x7835
 #define PCI_CHIP_RS690_791E             0x791E

src/mesa/drivers/dri/radeon/radeon_screen.c

@@ -693,6 +693,11 @@ radeonCreateScreen( __DRIscreenPrivate *sPriv )
       fprintf(stderr, "Warning, RS690 detected, 3D support is incomplete.\n");
       break;
 
+   case PCI_CHIP_RV530_71C4:
+      screen->chip_family = CHIP_FAMILY_R520;
+      fprintf(stderr, "Warning, R520 detected, 3D HAHAHAHAHA!!.\n");
+      break;
+
    default:
       fprintf(stderr, "unknown chip id 0x%x, can't guess.\n",
 	      dri_priv->deviceID);