arch: um: drivers: Kconfig: pedantic formatting

Formatting of Kconfig files doesn't look so pretty, so just
take damp cloth and clean it up. Just indention changes.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Signed-off-by: Richard Weinberger <richard@nod.at>

arch/um/drivers/Kconfig

@@ -315,7 +315,7 @@ config UML_NET_SLIRP
 	  to network by invoking a program that can handle SLIP encapsulated
 	  packets.  This is commonly (but not limited to) the application
 	  known as SLiRP, a program that can re-socket IP packets back onto
-        the host on which it is run.  Only IP packets are supported,
+	  he host on which it is run.  Only IP packets are supported,
 	  unlike other network transports that can handle all Ethernet
 	  frames.  In general, slirp allows the UML the same IP connectivity
 	  to the outside world that the host user is permitted, and unlike