Bug #24190 many exportable definitions of field_in_record_is_null

mysql had several(2) exportable definitions of field_in_record_is_null function.

Fixed with adding static.

storage/federated/ha_federated.cc

@@ -1534,7 +1534,7 @@ int ha_federated::close(void)
       0    otherwise
 */
 
-inline uint field_in_record_is_null(TABLE *table,
+static inline uint field_in_record_is_null(TABLE *table,
                                     Field *field,
                                     char *record)
 {

storage/innobase/handler/ha_innodb.cc

@@ -2510,7 +2510,7 @@ get_field_offset(
 /******************************************************************
 Checks if a field in a record is SQL NULL. Uses the record format
 information in table to track the null bit in record. */
-inline
+static inline
 uint
 field_in_record_is_null(
 /*====================*/