sparc32: fix build with leon or floppy enabled

Add a few includes back required to build with floppy enabled
Fix declaration of trapbase_cpu* so it is now consistent

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/kernel/irq_32.c b/arch/sparc/kernel/irq_32.c
index 974dab0..93afee0 100644
--- a/arch/sparc/kernel/irq_32.c
+++ b/arch/sparc/kernel/irq_32.c
@@ -14,6 +14,7 @@
 #include <linux/kernel_stat.h>
 #include <linux/seq_file.h>
 
+#include <asm/cacheflush.h>
 #include <asm/pcic.h>
 #include <asm/leon.h>