For ARMC6, CMSIS headers were checking the `__ARM_PCS_VFP`, which
indicates hardfp ABI in use, when they need to check whether FP
code generation is enabled. Change this to `__ARM_FP`, so it
works for platforms using softfp ABI.
Change already present in CMSIS_5 repo, via commit
969822ae162539d50617d1e5a3634ee2fd3b60f6, but redone with local
search-and-replace.
The ACTLR register itself is conditional on chip revision, but its
bit definitions were always defined.
Make the the bit definitions also conditional, so it is possible to
produce portable code that sets DISDEFWBUF if available:
#ifdef SCnSCB_ACTLR_DISDEFWBUF_Msk
SCnSCB->ACTLR |= SCnSCB_ACTLR_DISDEFWBUF_Msk;
#endif
(cherry-picked from CMSIS b2b04dbeece0a046556bfc320bef6b20bef3f16f)
Martin Kojtal
Kevin Bracey
Russ Butler
Bartek Szatkowski