afdo_metadata: Update kernel AFDO profiles

Update chromeos-kernel-3_18 to R87-13482.0-1601286522
Update chromeos-kernel-4_4 to R87-13482.0-1601285703
Update chromeos-kernel-4_14 to R87-13482.0-1601285982
Update chromeos-kernel-4_19 to R87-13482.0-1601286143

Also fixed the script a little bit to supress a warning.

BUG=None
TEST=None

Change-Id: I50be925fd9f598fb834a5b3153f86f29679844c7
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/toolchain-utils/+/2436058
Reviewed-by: Manoj Gupta <manojgupta@chromium.org>
Commit-Queue: Tiancong Wang <tcwang@google.com>
Tested-by: Tiancong Wang <tcwang@google.com>
2 files changed