hamradio: drop ISA_DMA_API dependency

It looks like the dependency got added accidentally in commit a553260
("[PATCH] ISA DMA Kconfig fixes - part 3"). Unlike the previously removed
dmascc driver, the scc driver never used DMA.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

Author: arndb

drivers/net/hamradio/Kconfig

@@ -47,7 +47,7 @@ config BPQETHER
 
 config SCC
 	tristate "Z8530 SCC driver"
-	depends on ISA && AX25 && ISA_DMA_API
+	depends on ISA && AX25
 	help
 	  These cards are used to connect your Linux box to an amateur radio
 	  in order to communicate with other computers. If you want to use