Avoid unnecessary library re-building in the DISABLE_DYNLOADING case

In the DISABLE_DYNLOADING case, a gbuild "Library" is actually a
static archive, so no point in having it depend on other libraries and
be re-created each time one of those have changed.

This hopefully will speed up incremental rebuilds for iOS and Android
nicely, especially in a debugging tree, as the creation of large
static archives with debug information is quite slow.

Change-Id: I17d6a8aeffa65b1e09a7a11544683659c72a50ba
Don't need Base, Calc, Draw and Math functionality here for now

Change-Id: I20b9325f9c7eed1e49ea815c284f8fe1a6ed428d