Revert "driver core: Set fw_devlink to "permissive" behavior by default"

This reverts commit c442a0d as it
breaks some of the Raspberry Pi devices.  Marek writes:
	This patch has just landed in linux-next 20200326. Sadly it
	breaks booting of the Raspberry Pi3b and Pi4 boards, either in
	32bit or 64bit mode. There is no warning nor panic message, just
	a silent freeze. The last message shown on the earlycon is:

	[    0.893217] Serial: 8250/16550 driver, 1 ports, IRQ sharing enabled

so revert it for now and let's try again and add it to linux-next after
5.7-rc1 is out so that we can try to get more debugging/testing
happening.

Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Saravana Kannan <saravanak@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/base/core.c

@@ -2345,7 +2345,7 @@ static int device_private_init(struct device *dev)
 	return 0;
 }
 
-static u32 fw_devlink_flags = DL_FLAG_SYNC_STATE_ONLY;
+static u32 fw_devlink_flags;
 static int __init fw_devlink_setup(char *arg)
 {
 	if (!arg)