adi_v5_jtag: fix build break when open DEBUG_WAIT macro

DEBUG_WAIT is useful to debug adi_jtag issue,
and the WCR register is replaced by DLCR for DP registers update
in commit 150b7d26f2.

Change-Id: I3faa9ea8a6adacd3d5275e40382801da731db32f
Signed-off-by: YanLin Zhu <zhuyanlin@pinecone.net>
Reviewed-on: http://openocd.zylin.com/4804
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-by: Christopher Head <chead@zaber.com>

src/target/adi_v5_jtag.c

@@ -72,8 +72,8 @@ static const char *dap_reg_name(int instr, int reg_addr)
 		case DP_RDBUFF:
 			reg_name =  "RDBUFF";
 			break;
-		case DP_WCR:
-			reg_name =  "WCR";
+		case DP_DLCR:
+			reg_name =  "DLCR";
 			break;
 		default:
 			reg_name = "UNK";