MN10300: Select HAVE_GENERIC_HARDIRQS rather than GENERIC_HARDIRQS

Select HAVE_GENERIC_HARDIRQS rather than GENERIC_HARDIRQS in MN10300's main
Kconfig file to avoid this warning:

warning: (MN10300) selects GENERIC_HARDIRQS which has unmet direct dependencies (HAVE_GENERIC_HARDIRQS)

Signed-off-by: David Howells <dhowells@redhat.com>
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
index 8b979ff..e207701 100644
--- a/arch/mn10300/Kconfig
+++ b/arch/mn10300/Kconfig
@@ -1,7 +1,7 @@
 config MN10300
 	def_bool y
 	select HAVE_OPROFILE
-	select GENERIC_HARDIRQS
+	select HAVE_GENERIC_HARDIRQS
 
 config AM33_2
 	def_bool n