[openwrt/openwrt] kernel: r8168: add missing flags

[LEDE Commits]

noltari pushed a commit to openwrt/openwrt.git, branch openwrt-23.05:
https://git.openwrt.org/1e30446f0aa53ff43988805e4493d9b9ae8996d0

commit 1e30446f0aa53ff43988805e4493d9b9ae8996d0
Author: Andy Chiang <AndyChiang_git at outlook.com>
AuthorDate: Wed Sep 10 01:23:47 2025 +0700

    kernel: r8168: add missing flags
    
    PKG_MAKE_FLAGS is required when compiling r8168-rss
    
    Signed-off-by: Andy Chiang <AndyChiang_git at outlook.com>
    Link: https://github.com/openwrt/openwrt/pull/20001
    Signed-off-by: Robert Marko <robimarko at gmail.com>
    Signed-off-by: Álvaro Fernández Rojas <noltari at gmail.com>
    (cherry picked from commit 5719d6506467285db424814433e7b6d8779ee9d2)
---
 package/kernel/r8168/Makefile | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/package/kernel/r8168/Makefile b/package/kernel/r8168/Makefile
index 98cf5ea35a..182950a624 100644
--- a/package/kernel/r8168/Makefile
+++ b/package/kernel/r8168/Makefile
@@ -2,7 +2,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=r8168
 PKG_VERSION:=8.055.00
-PKG_RELEASE:=3
+PKG_RELEASE:=4
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL:=https://github.com/openwrt/rtl8168/releases/download/$(PKG_VERSION)
@@ -40,6 +40,7 @@ endif
 
 define Build/Compile
 	+$(KERNEL_MAKE) $(PKG_JOBS) \
+		$(PKG_MAKE_FLAGS) \
 		M="$(PKG_BUILD_DIR)/src" \
 		modules
 endef