Iris: Directly flush batch when updating textures in a shared context
Add shareCtx flag in iris_context and directly flush batch in iris_transfer_flush_region. This patch can solve the abnormal display of Danmaku in Android video app Youku, which is caused by not flush batch in time when loading resources in a shared context.
Signed-off-by: Xiaohui Gu xiaohui.gu@intel.com