watchdog: aspeed: Add support for AST2700 platform
Add AST2700 platform support to the ASPEED watchdog driver. This includes
a new per-platform configuration with SCU reset status register at
SCU1_070 and support for 5 reset mask registers.
Signed-off-by: Chin-Ting Kuo <chin-ting_kuo@aspeedtech.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>