hw/arm: add Allwinner H3 System-on-Chip

hw/arm: add Allwinner H3 System-on-Chip

The Allwinner H3 is a System on Chip containing four ARM Cortex A7
processor cores. Features and specifications include DDR2/DDR3 memory,
SD/MMC storage cards, 10/100/1000Mbit Ethernet, USB 2.0, HDMI and
various I/O modules. This commit adds support for the Allwinner H3
System on Chip.

Signed-off-by: Niek Linnenbank <[email protected]>
Reviewed-by: Philippe Mathieu-Daudé <[email protected]>
Reviewed-by: Alex Bennée <[email protected]>
Tested-by: Philippe Mathieu-Daudé <[email protected]>
Message-id: 20200311221854[email protected]
Signed-off-by: Peter Maydell <[email protected]>