nfc: Fix Kconfig indentation

Adjust indentation from spaces to tab (+optional two spaces) as in
coding style with command like:
	$ sed -e 's/^        /\t/' -i */Kconfig
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/nfc/nfcmrvl/Kconfig

@@ -15,7 +15,7 @@ config NFC_MRVL_USB
 	  Marvell NFC-over-USB driver.
 
 	  This driver provides support for Marvell NFC-over-USB devices:
-          8897.
+	  8897.
 
 	  Say Y here to compile support for Marvell NFC-over-USB driver
 	  into the kernel or say M to compile it as module.