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/target-i386/helper.c b/target-i386/helper.c
index f8c8633..5df40d4 100644
--- a/target-i386/helper.c
+++ b/target-i386/helper.c
@@ -108,7 +108,7 @@
 
 void cpu_x86_close(CPUX86State *env)
 {
-    qemu_free(env);
+    g_free(env);
 }
 
 static void cpu_x86_version(CPUState *env, int *family, int *model)
@@ -1239,7 +1239,7 @@
     CPUX86State *env;
     static int inited;
 
-    env = qemu_mallocz(sizeof(CPUX86State));
+    env = g_malloc0(sizeof(CPUX86State));
     cpu_exec_init(env);
     env->cpu_model_str = cpu_model;