r600g: add missing r300 families

Wondering why r600g needs to include r300_pci_ids.h

src/gallium/drivers/r600/r600.h

@@ -59,11 +59,16 @@ enum radeon_family {
 	CHIP_R300,
 	CHIP_R350,
 	CHIP_RV350,
+	CHIP_RV370,
 	CHIP_RV380,
 	CHIP_R420,
 	CHIP_R423,
+	CHIP_R430,
+	CHIP_R480,
+	CHIP_R481,
 	CHIP_RV410,
 	CHIP_RS400,
+	CHIP_RC410,
 	CHIP_RS480,
 	CHIP_RS600,
 	CHIP_RS690,