sh: mach-dreamcast: Convert to sparseirq.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 9e565d9..3b3c036 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -730,8 +730,7 @@
 
 config SPARSE_IRQ
 	def_bool y
-	depends on SUPERH32 && !SH_DREAMCAST && !SH_HIGHLANDER && \
-		   !SH_RTS7751R2D
+	depends on SUPERH32 && !SH_HIGHLANDER && !SH_RTS7751R2D
 	help
 	  This enables support for sparse irqs. This is useful in general
 	  as most CPUs have a fairly sparse array of IRQ vectors, which