[IA64] move gcc_intrin.h from header-y to unifdef-y

When I submitted 0df29025 to ad
an #ifdef __KERNEL__ to include/asm-ia64/gcc_intrin.h a few weeks
ago I neglected to move gcc_intrin.h from header-y to unifdef-y.
Thanks to David Woodhouse for pointing this out.
Signed-off-by: Doug Chapman <doug.chapman@hp.com>
Signed-off-by: Jarod Wilson <jwilson@redhat.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

include/asm-ia64/Kbuild

@@ -3,7 +3,6 @@ include include/asm-generic/Kbuild.asm
 header-y += break.h
 header-y += fpu.h
 header-y += fpswa.h
-header-y += gcc_intrin.h
 header-y += ia64regs.h
 header-y += intel_intrin.h
 header-y += intrinsics.h
@@ -12,5 +11,6 @@ header-y += ptrace_offsets.h
 header-y += rse.h
 header-y += ucontext.h
 
+unifdef-y += gcc_intrin.h
 unifdef-y += perfmon.h
 unifdef-y += ustack.h