Fix private modules install path

Bug: 220644706
Test: make and find the private modules in dist.
Change-Id: I6d93347c1617a28e139cd4979ae0b09c960cf684
diff --git a/Makefile b/Makefile
index ce2c0ec..ee4779f 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}/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/
+	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