headers_check fix: ia64, intrinsics.h

fix the following 'make headers_check' warning:

  usr/include/asm-ia64/intrinsics.h:57: found __[us]{8,16,32,64} type without #include <linux/types.h>

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
diff --git a/arch/ia64/include/asm/intrinsics.h b/arch/ia64/include/asm/intrinsics.h
index a3e44a5..c47830e 100644
--- a/arch/ia64/include/asm/intrinsics.h
+++ b/arch/ia64/include/asm/intrinsics.h
@@ -10,6 +10,7 @@
 
 #ifndef __ASSEMBLY__
 
+#include <linux/types.h>
 /* include compiler specific intrinsics */
 #include <asm/ia64regs.h>
 #ifdef __INTEL_COMPILER