These have overlapping functionality, and while flash_eraseall supports
newer 64bit ioctls, flash_erase does not. So rather than graft support
onto flash_erase, merge the functionality of two into flash_erase so we
only have to support one util from now on.
A simple wrapper is provided to ease old flash_eraseall users into the
new combined flash_erase util.
Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>