If an example is in the libopencm3 source directory it will use the
locally built library instead of the system library.
When you copy an example out of the libopencm3 tree it will
automatically detect it and build using the system wide installation.
Only add one linker script per eval board, and have the Makefiles use that.
This avoids duplication, and various copy-paste errors and left-overs
which we already have in the tree.
Some of the linker scripts are not really correct, yet. Both, the comments
which say which board, chip, and RAM/ROM sizes are used, as well as the
actual RAM/ROM size definitions are sometimes copy-pasted from other boards
and are thus incorrect. This needs to be fixed.
