staging: android: ion: Fix unnecessary initialization of static variable

Fix checkpatch warning: removed unnecessary initialization of
static variable "heap_id" to 0 in source file "ioc.c".
Signed-off-by: Fabrizio Perria <fabrizio.perria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/android/ion/ion.c

@@ -41,7 +41,7 @@
 #include "ion.h"
 
 static struct ion_device *internal_dev;
-static int heap_id = 0;
+static int heap_id;
 
 bool ion_buffer_cached(struct ion_buffer *buffer)
 {