disp: msm: remap dmabuf attach during secure transitions

During secure cb detach, gem objects stored in the aspace
active list are not cleaned up properly leading to crash
when secure cb attaches again. This change remaps dma
buffer for those gem objects.

Change-Id: I7626e87ab60a61261c802a7e7763982546c4c2e7
Signed-off-by: Yashwanth <yvulapu@codeaurora.org>

msm/msm_gem.h

@@ -139,6 +139,11 @@ struct msm_gem_object {
 	struct msm_gem_address_space *aspace;
 	bool in_active_list;
 	char name[32]; /* Identifier to print for the debugfs files */
+
+	/* Indicates whether object  needs to request for
+	 * new pagetables due to cb switch
+	 */
+	bool obj_dirty;
 };
 #define to_msm_bo(x) container_of(x, struct msm_gem_object, base)