m68k/irq: Rename {,__}m68k_handle_int()

  - Rename m68k_handle_int() to generic_handle_irq(), and drop the unneeded
    asmlinkage,
  - Rename __m68k_handle_int() to do_IRQ().

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
diff --git a/arch/m68k/sun3/sun3ints.c b/arch/m68k/sun3/sun3ints.c
index 2046127..20ffee7 100644
--- a/arch/m68k/sun3/sun3ints.c
+++ b/arch/m68k/sun3/sun3ints.c
@@ -83,7 +83,7 @@
 {
         *sun3_intreg &= ~(1 << irq);
 
-	__m68k_handle_int(irq, fp);
+	do_IRQ(irq, fp);
 }
 
 static void sun3_irq_enable(struct irq_data *data)