sh: disable deprecated genirq support.

Now that all of the controllers have been fixed up, we can finally select
GENERIC_HARDIRQS_NO_DEPRECATED.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/Kconfig

@@ -29,6 +29,7 @@ config SUPERH
 	select HAVE_SPARSE_IRQ
 	select RTC_LIB
 	select GENERIC_ATOMIC64
+	select GENERIC_HARDIRQS_NO_DEPRECATED
 	help
 	  The SuperH is a RISC processor targeted for use in embedded systems
 	  and consumer electronics; it was also used in the Sega Dreamcast