Add a build file am: 06afb3f9da am: cef99bc238 am: 611802aa77 am: f5a768762a

Original change: https://android-review.googlesource.com/c/platform/external/wuffs-mirror-release-c/+/1922621

Change-Id: I2291e99761fbcef9eb2af70fc22686d1c3eb382a