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/mac/baboon.c b/arch/m68k/mac/baboon.c
index 2a96beb..f264791 100644
--- a/arch/m68k/mac/baboon.c
+++ b/arch/m68k/mac/baboon.c
@@ -72,7 +72,7 @@
 	do {
 	        if (events & irq_bit) {
 			baboon->mb_ifr &= ~irq_bit;
-			m68k_handle_int(irq_num);
+			generic_handle_irq(irq_num);
 		}
 		irq_bit <<= 1;
 		irq_num++;