Resolve conflict in naming of ahat module and file

Bazel doesn't allow a module and file to have the same
name, so rename ahat to ahat.sh

Bug: 198619163
Test: m ahat; out/host/linux-x86/bin/ahat
Change-Id: Iebe4320176ac27a76a90e244b05598cee1ff62c0
2 files changed