Private modules should be installed into private

Bug: 220644706
Test: make and find the private modules in dist.
Change-Id: I870ef0ee9ba4a460734b5e2ead23d73f8db7c0f7
diff --git a/Makefile b/Makefile
index 6640ff9..ce2c0ec 100644
--- a/Makefile
+++ b/Makefile
@@ -35,10 +35,10 @@
 
 modules_install:
 	$(MAKE) INSTALL_MOD_STRIP=1 M=$(M)/drivers -C $(KERNEL_SRC) modules_install
-	mkdir -p ${OUT_DIR}/../vendor_lib/modules
-	cd ${OUT_DIR}/$(M)/; find -name "*.ko" -exec cp {} ${OUT_DIR}/../vendor_lib/modules/ \;
-	mkdir -p ${OUT_DIR}/../vendor_lib/firmware/video
-	cp $(KERNEL_SRC)/$(M)/firmware/* ${OUT_DIR}/../vendor_lib/firmware/video/
+	mkdir -p ${OUT_DIR}/private/modules
+	cd ${OUT_DIR}/$(M)/; find -name "*.ko" -exec cp {} ${OUT_DIR}/private/modules/ \;
+	mkdir -p ${OUT_DIR}/private/firmware/video
+	cp $(KERNEL_SRC)/$(M)/firmware/* ${OUT_DIR}/private/firmware/video/
 
 clean:
 	$(MAKE) -C $(KERNEL_SRC) M=$(M) clean