merged a few more fixes of test cases for configuration changes

mysql-test/r/innodb.result

@@ -1782,7 +1782,7 @@ Variable_name	Value
 innodb_sync_spin_loops	20
 show variables like "innodb_thread_concurrency";
 Variable_name	Value
-innodb_thread_concurrency	8
+innodb_thread_concurrency	0
 set global innodb_thread_concurrency=1001;
 Warnings:
 Warning	1292	Truncated incorrect thread_concurrency value: '1001'

mysql-test/r/innodb_thread_concurrency_basic.result

 SET @global_start_value = @@global.innodb_thread_concurrency;
 SELECT @global_start_value;
 @global_start_value
-8
+0
 '#--------------------FN_DYNVARS_046_01------------------------#'
 SET @@global.innodb_thread_concurrency = 0;
 SET @@global.innodb_thread_concurrency = DEFAULT;
 SELECT @@global.innodb_thread_concurrency;
 @@global.innodb_thread_concurrency
-8
+0
 '#---------------------FN_DYNVARS_046_02-------------------------#'
 SET innodb_thread_concurrency = 1;
 ERROR HY000: Variable 'innodb_thread_concurrency' is a GLOBAL variable and should be set with SET GLOBAL
 SELECT @@innodb_thread_concurrency;
 @@innodb_thread_concurrency
-8
+0
 SELECT local.innodb_thread_concurrency;
 ERROR 42S02: Unknown table 'local' in field list
 SET global innodb_thread_concurrency = 0;
@@ -93,4 +93,4 @@ SELECT @@global.innodb_thread_concurrency;
 SET @@global.innodb_thread_concurrency = @global_start_value;
 SELECT @@global.innodb_thread_concurrency;
 @@global.innodb_thread_concurrency
-8
+0

mysql-test/t/innodb_thread_concurrency_basic.test

@@ -4,7 +4,7 @@
 # Scope: GLOBAL                                                               #
 # Access Type: Dynamic                                                        #
 # Data Type: Numeric                                                          #
-# Default Value: 8                                                            #
+# Default Value: 0                                                            #
 # Range: 0-1000                                                               #
 #                                                                             #
 #                                                                             #