doc: Update calibration part, add computer date check (correct date needed for eeprom write test23).

Was keeping mfg date even if it was 0xffffff (uninitialised eeprom), or bigger than current date.

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

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 b72160395b6af36fad4d4aa8b37cb984e75bf934.

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

This reverts commit a325b932dd04df878a55418ae8fb30ce951da81f.

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