Update lynx SVN to 21 am: 02c0ddcf51 am: 48c0187392 am: 6718e150c6 am: 47a93eb2f9

Original change: https://googleplex-android-review.googlesource.com/c/device/google/lynx/+/25177037

Change-Id: I5bbe552c47f5bc9679e0049bf4c53d3a2abdcaf6
Signed-off-by: Automerger Merge Worker <[email protected]>