-DNRF52 ambiguous and incompatible with -DNRF52832_XXAB

[Bruno Randolf]

When working on adapting the bootloader for NRF52832_XXAB I noticed that -DNRF52 seems to define NRF52832_XXAA and later defining -DNRF52832_XXAB does not override it. I suppose -DNRF52 should be removed alltogether and the more specific -DNRF52832_XXAA or -DNRF52832_XXAB be used.

[Andy]

I join the complaint. I had issues in the past with this particular definition when porting code from an NRF52832 to an NRF52840. It caused the 840 to behave as an 832.