docs: marvell: Replace ESPRESSObin-Ultra TF-A build example by full example how to build production release of Marvell firmware image

ESPRESSObin-Ultra TF-A build example was now just a copy+paste of previous
mentioned example. It produced debug binary with custom log level, which
was not described. So rather replace this duplicate build example by a full
example with all steps how to build production release of Marvell firmware
image for EspressoBin with 1GHz CPU and 1GB DDR4 RAM.

Signed-off-by: Pali Rohár <pali@kernel.org>
Change-Id: Ief1b8bc96a3035ebd8421bd68dca5eb5c8d8fd52
1 file changed