Align: Make sure 1 is treated as unsigned long instead of int

... and drop duplicate definition in via/epia-n code.

Change-Id: Id79daaaa35c4d412c8c1f621a3638d129681d331
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/820
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
diff --git a/src/include/stdlib.h b/src/include/stdlib.h
index 45420d7..5465c14 100644
--- a/src/include/stdlib.h
+++ b/src/include/stdlib.h
@@ -5,7 +5,7 @@
 
 #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
 
-#define ALIGN(x,a)              __ALIGN_MASK(x,(typeof(x))(a)-1)
+#define ALIGN(x,a)              __ALIGN_MASK(x,(typeof(x))(a)-1UL)
 #define __ALIGN_MASK(x,mask)    (((x)+(mask))&~(mask))
 
 #define MIN(a,b) ((a) < (b) ? (a) : (b))