arch/arm/src/tiva/cc13xx: Trim code now kind of looks like NuttX code. But does not yet compile.
arch/arm/src/tiva/cc13xx: The first few, feeble steps toward getting the overall trim files compatible with the requirements of the NuttX coding standard.
arch/arm/src/tiva/cc13xx: Replace last of TI hardware access macros with NuttX hardware access macros.
arch/arm/src/tiva/cc13xx: Change TI HWREGB to NuttX getreg8 or putreg8 in trim logic.
arch/arm/src/tiva/cc13xx: Change TI HWREGBITW to NuttX getreg32/putreg32 sequence in trim logic.
arch/arm/src/tiva/hardware/cc13x2_cc26x2/cc13x2_cc26x2_ddi0_osc.h: Completes the DDIO OSC header file.
cc13x2_cc26x2/cc13x2_cc26x2_ddi0_osc.h: Updated, but still not finished.
arch/arm/src/tiva/hardware/cc13x2_cc26x2/cc13x2_cc26x2_ddi0_osc.h: Add DDI0 OSC header file. Still a work in progress. Does not yet conform to the NuttX coding standard.
Change _M and _S to _MASK and _SHIFT.
Some minor improvements.
Clean up typos in some comments.
Run all new files against tools/indent.sh
arch/arm/src/tiva/cc13xx: Bring in trim files from SDK. Convert to C-style comments, lowercase hex contants. Remove Windows-style line endings.
