ARM: dts: aspeed-g5: Move EDAC node to APB

Previously the register interface was not attached to any internal bus,
which is not correct - it lives on the APB.

Cc: Stefan M Schaeckeler <sschaeck@cisco.com>
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Stefan Schaeckeler <sschaeck@cisco.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>