Summary of changes

I noticed while working on #326 that there was a weird setup going on with the MAX32625 targets, where there were two CMake targets for the "boot" (with bootloader) and "no boot" (no bootloader, uses full memory area) versions. Their linker scripts are identical except different values for MBED_APP_START and MBED_APP_SIZE. This is a classic situation where the new memory bank config system can help make things simpler and remove duplicate linker scripts! I removed the boot/no boot stuff and just had one of the targets configure the memory bank size.

Impact of changes

Migration actions required

Documentation

None

Pull request type

[X] Patch update (Bug fix / Target update / Docs update / Test update / Refactor)
[] Feature update (New feature / Functionality change / New API)
[] Major update (Breaking change E.g. Return code change / API behaviour change)

Test results

[X] No Tests required for this change (E.g docs only update)
[] Covered by existing mbed-os tests (Greentea or Unittest)
[] Tests / results supplied as part of this PR

Unfortunately I do not have a board to test with, but I did verify that this change compiles.