Backport of "vp8enc/vp8enc: set 1 for the default value of VP8E_SET_STATIC_THRESHOLD" into 1.16
Backport of !468 (merged) "vp8enc/vp8enc: set 1 for the default value of VP8E_SET_STATIC_THRESHOLD".
Commits:
- 88ce7397 vp8enc/vp8enc: set 1 for the default value of VP8E_SET_STATIC_THRESHOLD