iwlwifi: remove g2 from csr hw rev

Remove refernce of g2 and use offical number for hw rev.
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

drivers/net/wireless/iwlwifi/iwl-csr.h

@@ -300,8 +300,9 @@
 #define CSR_HW_REV_TYPE_1000           (0x0000060)
 #define CSR_HW_REV_TYPE_6x00           (0x0000070)
 #define CSR_HW_REV_TYPE_6x50           (0x0000080)
-#define CSR_HW_REV_TYPE_6x50g2         (0x0000084)
-#define CSR_HW_REV_TYPE_6x00g2         (0x00000B0)
+#define CSR_HW_REV_TYPE_6150           (0x0000084)
+#define CSR_HW_REV_TYPE_6x05	       (0x00000B0)
+#define CSR_HW_REV_TYPE_6x30	       CSR_HW_REV_TYPE_6x05
 #define CSR_HW_REV_TYPE_NONE           (0x00000F0)
 
 /* EEPROM REG */