staging: rtl8187se: Convert nic_t typedef into an enum

The Documentation/CodingStyle doesn't recommend the use of typedef,
convert this to enum.
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>

drivers/staging/rtl8187se/r8180.h

@@ -85,10 +85,10 @@ struct chnl_access_setting {
 	u16 cwmax_index;
 };
 
-typedef enum {
+enum nic_t {
 	NIC_8185 = 1,
 	NIC_8185B
-	} nic_t;
+};
 
 typedef u32 AC_CODING;
 #define AC0_BE	0 /* ACI: 0x00 */ /* Best Effort. */