ia64: introduce asm/swab.h

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/ia64/include/asm/Kbuild b/arch/ia64/include/asm/Kbuild
index ccbe8ae..3b25bd9 100644
--- a/arch/ia64/include/asm/Kbuild
+++ b/arch/ia64/include/asm/Kbuild
@@ -14,3 +14,4 @@
 unifdef-y += intrinsics.h
 unifdef-y += perfmon.h
 unifdef-y += ustack.h
+unifdef-y += swab.h