binaries-marvell: new package

binaries-marvell: new package

Some systems, including Marvell Armada 7k/8k SoCs, have a separate
System Control Processor (SCP) for power management, clocks, reset
and system control. ATF Boot Loader stage 2 (BL2) loads optional
SCP_BL2 image into a platform-specific region of secure memory.

This package adds SCP_BL2 firmware for Marvell Armada 7040 and 8040 SoCs.

Signed-off-by: Sergey Matyukevich <geomatsi@gmail.com>
[Thomas:
 - Use "binaries-marvell" in the Config.in prompt and in the .mk file
   header.
 - Change the license information.
 - Adjust license information: it is GPL-2.0 with the FreeRTOS
   exception, and therefore can be redistributed.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>