hw/integratorcp: Simplify flash remap code Use the new memory mutator API to simplify the flash remap code; this allows us to drop the flash_mapped flag. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>