Fix breakages to android builds due to toolchain issues

[marktefftech]

See changes in the following files:

• 0e9555a
• 07bd293

These broke our build commands:

• bazelisk build launcher/android:jazzer_android --config=android_arm
• bazelisk build src/main/java/com/code_intelligence/jazzer/android:jazzer_standalone_android --config=android_arm

[fmeum]

Sorry for the breakage, the fixes look good.

To prevent this from happening in the future, would you be interested in adding these invocations to the CI pipeline? The GitHub runners should have Android NDKs/SDKs installed.

[marktefftech]

@fmeum no worries on the breakages.

Going forward I think it's an excellent idea to add the invocations to the CI pipeline. Can you please point me towards where these tests should be added and I will look into prioritizing them?

[fmeum]

Ideally these tests would just be regular Bazel tests and targets that we could build as part of our existing Linux builds (which are much faster than the macOS and Windows runners).

I started #730 with some refactorings to the way we set Android-related flags, but I don't know enough about Android builds to assess whether these changes are safe. @marktefftech Could you take a look?