Fixed test failure

mysql-test/t/loaddata.test:
  Don't run test if ucs2 is not compiled

mysql-test/t/loaddata.test

@@ -2,6 +2,8 @@
 # Some simple test of load data
 #
 
+-- source include/have_ucs2.inc
+
 --disable_warnings
 drop table if exists t1, t2;
 --enable_warnings

support-files/compiler_warnings.supp

@@ -112,6 +112,8 @@ signal\.c : .*unused parameter.*
 .* : conversion from '.*size_t' to 'uInt'.*
 .* : conversion from '.*size_t' to 'uint16'.*
 .* : The following environment variables were not found.*
+.* : no public symbols found; archive member will be inaccessible
+.* : DESCRIPTION statement not supported
 
 # Ignore uninitialized local variables on windows
 .* : uninitialized local variable .* used