Also Set IME_FLAG_NO_FULLSCREEN to RemoteEditText

This is a follow up CL to the previous CL [1], which specified
IME_FLAG_NO_EXTRACT_UI to RemoteEditText.

As discussed in Bug 7412307, specifying IME_FLAG_NO_EXTRACT_UI without
IME_FLAG_NO_FULLSCREEN has been known to cause some unexpected behaviors
across multiple components since at least ICS release.

Until Bug 7412307 is fixed, it would be safer to specify both flags when
we want to disable full-screen extracted UI mode.

 [1]: Ibb759a50ade279ad96598b25f99b169bc27a5b72
      0558bc5d

Bug: 30424228
Change-Id: I6dc80f8506df66d8f3f3f822c7823f53f7c56d1c