Clean /bionic

The path has gone

Test: m
Change-Id: Iecbde545f84357706da55e4fdb7b421433f945d0
diff --git a/CleanSpec.mk b/CleanSpec.mk
index 9421e26..8865723 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -53,6 +53,10 @@
 $(call add-clean-step, rm -f $(PRODUCT_OUT)/system/lib/libGLES*)
 $(call add-clean-step, rm -f $(PRODUCT_OUT)/system/lib64/libGLES*)
 
+# /bionic is removed
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/root/bionic)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/recovery/root/bionic)
+
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
 # ************************************************