Till now, linker_config has to be installable to be packaged. With this commit, packaging modules like filesystem now can include uninstallable linker_config. This can help when linker_config can conflict with other partitions e.g. system. Bug: 185391776 Test: build filesystem with uninstallable linker_config Change-Id: Ic2cece08be73749e6bd1f813152c67f8e3904c20