wireless/p54: P54_SPI should depend on GENERIC_HARDIRQS

m68k allmodconfig:
| drivers/net/wireless/p54/p54spi.c: In function 'p54spi_probe':
| drivers/net/wireless/p54/p54spi.c:675: error: implicit declaration of function
| 'set_irq_type'
| make[4]: *** [drivers/net/wireless/p54/p54spi.o] Error 1

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/p54/Kconfig b/drivers/net/wireless/p54/Kconfig
index cfc5f41a..0e344ac 100644
--- a/drivers/net/wireless/p54/Kconfig
+++ b/drivers/net/wireless/p54/Kconfig
@@ -64,7 +64,7 @@
 
 config P54_SPI
 	tristate "Prism54 SPI (stlc45xx) support"
-	depends on P54_COMMON && SPI_MASTER
+	depends on P54_COMMON && SPI_MASTER && GENERIC_HARDIRQS
 	---help---
 	  This driver is for stlc4550 or stlc4560 based wireless chips.
 	  This driver is experimental, untested and will probably only work on