Normalize dynamic search result in Japanese

Hiragana and Katakana are normalized in Japanese query string but
the dynamic search result is not. This leads to wrong results.
This is related to b/28410478

Bug: 112248621
Test: Manual - Set language to Japanese and search
Change-Id: I82ae5d44714b8152551d10c9868cb513bc075f7c
1 file changed