USB HID: move usbhid code from drivers/usb/input to drivers/hid/usbhid

Separate usbhid code into dedicated drivers/hid/usbhid directory as
discussed previously with Greg, so that it eases maintaineance process.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 850788f..8fbe9fd 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -36,5 +36,7 @@
 
 	If unsure, say N
 
+source "drivers/hid/usbhid/Kconfig"
+
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