kernel: switch back 5.15 to fw_devlink=permissive

Kernel switching to fw_devlink=on as default broke probing some devices.
Revert it until we get a proper fix.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>

target/linux/generic/hack-5.15/930-Revert-Revert-Revert-driver-core-Set-fw_devlink-on-b.patch

@@ -0,0 +1,30 @@
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Tue, 19 Jul 2022 06:17:48 +0200
+Subject: [PATCH] Revert "Revert "Revert "driver core: Set fw_devlink=on by
+ default"""
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This reverts commit ea718c699055c8566eb64432388a04974c43b2ea.
+
+With of_platform_populate() called for MTD partitions that commit breaks
+probing devices which reference MTD in device tree.
+
+Link: https://lore.kernel.org/all/696cb2da-20b9-b3dd-46d9-de4bf91a1506@gmail.com/T/#u
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+---
+ drivers/base/core.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/base/core.c
++++ b/drivers/base/core.c
+@@ -1561,7 +1561,7 @@ static void device_links_purge(struct de
+ #define FW_DEVLINK_FLAGS_RPM		(FW_DEVLINK_FLAGS_ON | \
+ 					 DL_FLAG_PM_RUNTIME)
+ 
+-static u32 fw_devlink_flags = FW_DEVLINK_FLAGS_ON;
++static u32 fw_devlink_flags = FW_DEVLINK_FLAGS_PERMISSIVE;
+ static int __init fw_devlink_setup(char *arg)
+ {
+ 	if (!arg)