Merge "build_flag: when printing all flags, sort them." into main am: 0499f2c6 am: 423e5d1c

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/3126513



Change-Id: I0319b26a7e9ebb2551f1cee32abe8968e22ac5e5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>