update_kernel_afdo: Skip arm/5_15 on 115

BUG=b:279767300
TEST=./update_kernel_afdo --noupload main

Change-Id: I6dfa0364f47e2a2592531b9a8d26631795648e91
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/toolchain-utils/+/4481515
Reviewed-by: Christopher Di Bella <cjdb@google.com>
Commit-Queue: Christopher Di Bella <cjdb@google.com>
Tested-by: Denis Nikitin <denik@chromium.org>
1 file changed