and my_innodb_commit_concurrency global variables.

Type of the my_innodb_autoextend_increment and the
my_innodb_commit_concurrency variables has been changed to
GET_ULONG.



mysql-test/r/variables.result:
  Added test case for bug#34223.
mysql-test/t/variables.test:
  Added test case for bug#34223.
sql/mysqld.cc:
  Fixed bug#34223.
  Last update of the getopt_ull_limit_value function introduced
  a sanity check for a variable type (only GET_UINT or GET_ULONG
  are valid types).
  However, my_innodb_autoextend_increment and
  my_innodb_commit_concurrency are declared as GET_LONG.
  Call stack is: 
          sys_var_long_ptr_global::update()
          fix_unsigned()
          getopt_ull_limit_value()
  
  Type of the my_innodb_autoextend_increment and the
  my_innodb_commit_concurrency variables has been changed to
  GET_ULONG.