Fixing bug where check does not work with RFM1 IPCs, and adding check to kill...

See merge request !643

Adding Xmit indicator

Closes #620

See merge request !642

Fixing bug where check does not work with RFM1 IPCs, and adding check to kill build if we use an index higher than 63 for RFM IPCs

Removing deprecated EXTRA_CFLAGS in kernel make files

See merge request !641

Add ability for models to wait for late IPCs.

See merge request !640

Support for new ADCs in VIO model.

See merge request !639

change references to IO_MEM_DATA.iodata to IO_MEM_DATA.inputData

See merge request !638

Fixes CI build.

Merge branch 'branch-5.1' into master

See merge request !637

Setting the DAC write ahead to 1 sample instead of 6

See merge request !636

fix: 18-bit DACs wouldn't set DAC error bit when in HIQTR

See merge request !634

An IOP will set the DAC error bit if FIFO HIQTR is set for six consecutive cycles, but an off-by-two error prevented the IOP from ever counting that high for 18 bit DACs.  20 Bit DACs and 16 bit DACs were not affected.

Adding mfence ops for userspace

See merge request !632

Defining functions for VIO

See merge request !631

Fixing issue where I canged a loop by one, and messed up the DAC delay

See merge request !630