update multimedia/BUILD.gn.

修复tab
Signed-off-by: N戴伟琦 <daiweiqi@huawei.com>

multimedia/BUILD.gn

@@ -5,7 +5,7 @@
 #
 #     http://www.apache.org/licenses/LICENSE-2.0
 #
-# Unless required by applicable law or agreed to in writing, software
+# Unless required by applicable law  or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and