package/cfm: fix build with cmake 4

Fixes:
https://autobuild.buildroot.net/results/d01/d01d8fe3a63128246ce242de450b016b4ef13baa/

Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/cfm/0001-CMakeLists-fix-build-with-cmake-4.patch

@@ -0,0 +1,33 @@
+From d2a823ef01396cd148074a99ccbbf1ca1115b24d Mon Sep 17 00:00:00 2001
+From: Bernd Kuhls <bernd@kuhls.net>
+Date: Sat, 3 Jan 2026 14:56:38 +0100
+Subject: [PATCH] CMakeLists: fix build with cmake 4
+
+Using CMake 4 the build is broken:
+
+CMake Error at CMakeLists.txt:6 (cmake_minimum_required):
+  Compatibility with CMake < 3.5 has been removed from CMake.
+
+Upstream: https://github.com/microchip-ung/cfm/pull/1
+
+Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
+---
+ CMakeLists.txt | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 5de2e0a..378e98d 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -3,7 +3,7 @@
+ 
+ project (cfm C)
+ 
+-cmake_minimum_required(VERSION 2.6)
++cmake_minimum_required(VERSION 3.5)
+ 
+ ## libnl ################################################
+ find_path(LibNL_INCLUDE_DIR netlink/netlink.h
+-- 
+2.47.3
+