debian: Bump version to 0+git20191030.b848ba2-1 BUG=chromium:985174 TEST=None Change-Id: Ib59090dd10dd7b517be6ef1e6301ddda7f988257 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/glbench/+/1889466 Reviewed-by: David Riley <[email protected]> Tested-by: David Riley <[email protected]> Commit-Queue: Po-Hsien Wang <[email protected]> Auto-Submit: Po-Hsien Wang <[email protected]>