uclibc-ng-dev: fix kernel header install

package/uclibc-ng/Makefile

@@ -44,7 +44,7 @@ uclibc-ng-dev-install:
 	${CP} ${STAGING_TARGET_DIR}/usr/lib/uclibc_nonshared.a ${IDIR_UCLIBC_NG_DEV}/usr/lib
 	${CP} ${STAGING_TARGET_DIR}/usr/lib/crt*.o ${IDIR_UCLIBC_NG_DEV}/usr/lib
 	${KERNEL_MAKE_ENV} \
-	$(MAKE) -C $(TOOLCHAIN_BUILD_DIR)/w-linux-$(KERNEL_VERSION)/linux-$(KERNEL_FILE_VER) \
+	$(MAKE) -C $(TOOLCHAIN_BUILD_DIR)/w-linux-$(KERNEL_FILE_VER)-1/linux-$(KERNEL_FILE_VER) \
 		$(KERNEL_MAKE_OPTS) \
 		INSTALL_HDR_PATH=$(IDIR_UCLIBC_NG_DEV)/usr \
 		headers_install