command_handler: change 'args' to CMD_ARGV

This patch converts all instances of 'args' in COMMAND_HANDLER routines
to use CMD_ARGV macro.

src/target/armv7a.c

@@ -264,7 +264,7 @@ COMMAND_HANDLER(handle_dap_info_command)
 		apsel = swjdp->apsel;
 		break;
 	case 1:
-		COMMAND_PARSE_NUMBER(u32, args[0], apsel);
+		COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], apsel);
 		break;
 	default:
 		return ERROR_COMMAND_SYNTAX_ERROR;