ART: clear dirty cards of alloc space in pause phase

Clear the dirty cards of alloc spaces when scanning them in pause phase,
the dirty cards of image or zygote space will not be cleared in order to
track the references to the other spaces.

Change-Id: I519f071d954a589aa33dbce0cdba405f2d2cef71
Signed-off-by: Lei Li <lei.l.li@intel.com>
4 files changed