[IA64] Fix build error in paravirt_patchlist.c

Andrew cleaned up some #include tangles in:
commit 0d9c25dd
  headers: move module_bug_finalize()/module_bug_cleanup() definitions into module.h

which resulted in this build error for ia64:
  CC      arch/ia64/kernel/paravirt_patchlist.o
arch/ia64/kernel/paravirt_patchlist.c:43: error: expected '=', ',', ';', 'asm' or '__attribute__' before '__initdata'
arch/ia64/kernel/paravirt_patchlist.c:54: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'paravirt_get_gate_patchlist'
arch/ia64/kernel/paravirt_patchlist.c:76: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'paravirt_get_gate_section'
make[1]: *** [arch/ia64/kernel/paravirt_patchlist.o] Error 1

The problem was that paravirt_patchlist.c was relying on some of the
nested includes (specifically that linux/bug.h included linux/module.h
Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

arch/ia64/kernel/paravirt_patchlist.c

@@ -19,6 +19,8 @@
  */
 
 #include <linux/bug.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
 #include <asm/paravirt.h>
 
 #define DECLARE(name)						\