Mach build android - updated default tasks for local build

[Aaditya Dhingra]

Hey,

Sharing for reference, in Bug 1947773, we have updated mach build for android so that it no longer assembles the example GeckoView projects or publishes GeckoView to your local Maven repository by default for local builds. These changes do not affect automation/CI builds. If you need these tasks for local builds, please add the following to your mozconfig:
• ac_add_options --enable-geckoview-examples – to assemble example GeckoView projects (messaging_example & port_messaging_example)
• ac_add_options --enable-geckoview-publishing – to publish GeckoView to the local maven repository

Thanks,

Aaditya