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.
Newer versions of OpenOCD expect
stm32f1x mass_erase 0
or
stm32f2x mass_erase 0
instead of
stm32x mass_erase 0
So far, there doesn't seem to be an explicit F4 command, so leave that
untouched for now.
Piotr Esden-Tempski