Add module name to sh_test install path.

This relands Ibb1d774709ea421e18d5350009c203f83c5b2d60 after fixing
a backward compatibility issue where some test configs rely on sh_tests
not having a module name in their paths when sub_dir is specified.

Bug: 156980228
Test: m ziptool-tests
Test: sh_binary_test.go
Change-Id: If0521a008e7170d94b601f3df9dd0c12d1c96d21