[openwrt/openwrt] kernel: add CONFIG_INITRAMFS_PRESERVE_MTIME config to Initramfs function

[LEDE Commits]

ansuel pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/7612f8d6eb6f682d7acffae8bcd58f01ed01f35f

commit 7612f8d6eb6f682d7acffae8bcd58f01ed01f35f
Author: Christian Marangi <ansuelsmth at gmail.com>
AuthorDate: Wed Oct 19 00:03:17 2022 +0200

    kernel: add CONFIG_INITRAMFS_PRESERVE_MTIME config to Initramfs function
    
    New kernel version 6.1 introduced new INITRAMFS option. Add them to the
    Initramfs functions to correctly compile initramfs images.
    
    Signed-off-by: Christian Marangi <ansuelsmth at gmail.com>
---
 include/kernel-defaults.mk | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/kernel-defaults.mk b/include/kernel-defaults.mk
index 6a341c3225..6a0251a9e2 100644
--- a/include/kernel-defaults.mk
+++ b/include/kernel-defaults.mk
@@ -75,6 +75,7 @@ endif
 	rm -f $(LINUX_DIR)/.config.prev
 	mv $(LINUX_DIR)/.config $(LINUX_DIR)/.config.old
 	$(call Kernel/SetInitramfs/PreConfigure)
+	echo "# CONFIG_INITRAMFS_PRESERVE_MTIME is not set" >> $(LINUX_DIR)/.config
   ifneq ($(CONFIG_TARGET_ROOTFS_INITRAMFS_SEPARATE),y)
 	echo 'CONFIG_INITRAMFS_ROOT_UID=$(shell id -u)' >> $(LINUX_DIR)/.config
 	echo 'CONFIG_INITRAMFS_ROOT_GID=$(shell id -g)' >> $(LINUX_DIR)/.config
@@ -99,6 +100,7 @@ define Kernel/SetNoInitramfs
 	grep -v INITRAMFS $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config.set
 	echo 'CONFIG_INITRAMFS_SOURCE=""' >> $(LINUX_DIR)/.config.set
 	echo '# CONFIG_INITRAMFS_FORCE is not set' >> $(LINUX_DIR)/.config.set
+	echo "# CONFIG_INITRAMFS_PRESERVE_MTIME is not set" >> $(LINUX_DIR)/.config.set
 endef
 
 define Kernel/Configure/Default