Bug#32784: Timeout in test "innodb_charset": InnoDB much slower than other handlers

Turned off autocommit at the start of this test per Innobase recommendation.
Noted significant reduction in run time for this test w/ a minor increase in other tests' run-times.

mysql-test/suite/funcs_2/charset/charset_master.test

@@ -86,6 +86,15 @@ let $check_std_csets= 1;
 let $check_ucs2_csets= 1;
 let $check_utf8_csets= 1;
 
+# Bug#32784: Timeout in test "innodb_charset": InnoDB much slower 
+#            than other handlers
+# NOTE:  We turn autocommit off to improve the performance of the innodb variant
+#        of this test.  Per Innobase's recommendation.
+
+--disable_query_log
+SET autocommit=0;
+--enable_query_log
+
 #
 # Check all charsets/collation combinations
 #