Add NUMAKER_PFM_NUC472 and NUMAKER_PFM_M453
Add NUMAKER_PFM_NUC472 and NUMAKER_PFM_M453

Add support for renamed target boards:
NUMBED_NUC472 --> NUMAKER_PFM_NUC472
NUMBED_M453 --> NUMAKER_PFM_M453

jupe/mbed-ls,mtmtech/mbed-ls,mazimkhan/mbed-ls,mazimkhan/mbed-ls,mtmtech/mbed-ls,jupe/mbed-ls