chromium68: remove downstream backports
Bump revision to include:
*
3169198 [BACKPORT] skia: Build skcms with -mfp16-format=ieee on GCC ARM builds
*
6aa7e63 [BACKPORT] libavcodec: Remove dynamic relocs from h264idct_neon.S
These patches were being kept in the recipe, but there is no need for
that now.
Bug-AGL: SPEC-2506
Bug-AGL: SPEC-2514
Change-Id: I7dcd221c7f4fc179f2e686c8cc4eb619917ad9ab
Signed-off-by: Jacobo Aragunde Pérez <jaragunde@igalia.com>
(cherry picked from commit
ca764441c712804d00562f838a4ef00c881750e9)