Work on acquisition (trig and end acq interrupts).
Work on internal trigger (level).

Add a function to read gn4124 interrupt configuration.

Instead of doing it at the end after all dma.

This function makes chained dma as big as possible, using up to 255 pages
for items and only one for the pattern.

All bitstream related information is now in sdb.

Create a simlink to the release bitstream.
Will be easier to change to the next release.

This reverts commit b7216039.

From now on, gateware binaries must be taken from the files section
of the fmc-adc project.

This reverts commit a325b932.

vendor = 0xCE42 = CERN
device = echo "fmc-adc-100m14b4cha" | md5sum | cut -c1-8