Fix typo in cross partition dependency generation

intention was to symlink modules in vendor_dlkm to system_dlkm. Typo
caused the same modules to link itself.

Test: build, make sure vendor_dlkm's modules.dep contains system
dependency

Change-Id: I19664cd9a8578566d3a038885b8ce27556801a79
diff --git a/core/Makefile b/core/Makefile
index 0d0c0fd..fe0cf50 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -379,10 +379,10 @@
 	# dependency resolution, we achieve this by maually removing any duplicate
 	# modules with lower priority.
 	$(if $(9),\
-	  find $$(PRIVATE_EXTRA_MODULE_DIR) -maxdepth 1 -type f -name "*.ko" -delete; \
 	  mkdir -p $$(PRIVATE_EXTRA_MODULE_DIR); \
-	  cp $$(EXTRA_MODULES) $$(PRIVATE_EXTRA_MODULE_DIR); \
-	  ln -sf $$(PRIVATE_EXTRA_MODULE_DIR)/*.ko $$(PRIVATE_EXTRA_MODULE_DIR); \
+	  find $$(PRIVATE_EXTRA_MODULE_DIR) -maxdepth 1 -type f -name "*.ko" -delete; \
+	  cp $$(PRIVATE_EXTRA_MODULES) $$(PRIVATE_EXTRA_MODULE_DIR); \
+	  ln -sf $$(PRIVATE_MODULE_DIR)/*.ko $$(PRIVATE_EXTRA_MODULE_DIR); \
 	  find $$(PRIVATE_EXTRA_MODULE_DIR) -type l -delete; \
 	)
 	$(DEPMOD) -b $$(PRIVATE_STAGING_DIR) 0.0