[skotty] Fix native path lerp

SkPath::interpolate() seems to use 'weight' opposite from documentation.

TBR=
Change-Id: I678f7939776bfb21614095df8a2c2dcaa4ecd5f5
Reviewed-on: https://skia-review.googlesource.com/90341
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Florin Malita <fmalita@chromium.org>
1 file changed