HID: make debugging output runtime-configurable

There have been many reports recently about broken HID devices, the
diagnosis of which required users to recompile their kernels in order
to be able to provide debugging output needed for coding a quirk for
a particular device.

This patch makes CONFIG_HID_DEBUG default y if !EMBEDDED and makes it
possible to control debugging output produced by HID code by supplying
'debug=1' module parameter.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 8fbe9fd..5b004b2 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -24,6 +24,7 @@
 
 config HID_DEBUG
 	bool "HID debugging support"
+	default y if !EMBEDDED
 	depends on HID
 	---help---
 	This option lets the HID layer output diagnostics about its internal