[SR-1750] Use the Android linker when running the Android test suite

[modocache]

Previous ID	SR-1750
Radar	None
Original Reporter	@modocache
Type	New Feature
Status	Closed
Resolution	Done

Additional Detail from JIRA

Votes	0
Component/s	Project Infrastructure
Labels	New Feature, Android
Assignee	None
Priority	Medium

md5: acd753522516893ba3ef0c86e1912069

Issue Description:

Once #2912 is merged, we will be able to specify the linker we want to use when running Android tests. This will obviate the following instructions in docs/Android.md: "To compile it, we need to make sure the correct linker is used. Symlink the gold linker in the Android NDK into your PATH".

This is exciting because it will make the tests easier to run – we may even be able to run it on a CI server.

[finagolfin]

The `-tools-directory` flag was added to the Android doc four years ago and I removed that symlink section last year.