Use glib memory allocation and free functions

qemu_malloc/qemu_free no longer exist after this commit.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/linux-user/main.c b/linux-user/main.c
index 8e15474..95e3fe6 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -3216,7 +3216,7 @@
     }
     target_argv[target_argc] = NULL;
 
-    ts = qemu_mallocz (sizeof(TaskState));
+    ts = g_malloc0 (sizeof(TaskState));
     init_task_state(ts);
     /* build Task State */
     ts->info = info;