Merge changes from topic "marvell-armada-docs" into integration

* changes:
  docs: marvell: Replace ESPRESSObin-Ultra TF-A build example by full example how to build production release of Marvell firmware image
  docs: marvell: Fix description of flash-image.bin image
  docs: marvell: Add information into CLOCKSPRESET option how to identify CPU frequency
  docs: marvell: Reformat DDR_TOPOLOGY option and mention EspressoBin-Ultra board
  docs: marvell: Move Supported Marvell platforms to PLAT build option