[U-Boot] [PATCH] include/env.h: Ensure ulong is defined

[Alistair Francis]

To fix these failures when building with musl:
   include/env.h:166:1: error: unknown type name 'ulong'; did you mean 'long'?
ensure that ulong is defined.

Signed-off-by: Alistair Francis <alistair.francis at wdc.com>
---
 include/env.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/env.h b/include/env.h
index b72239f6a5..5ca49a3456 100644
--- a/include/env.h
+++ b/include/env.h
@@ -13,6 +13,8 @@
 #include <stdbool.h>
 #include <linux/types.h>
 
+typedef unsigned long           ulong;
+
 struct environment_s;
 
 /* Value for environment validity */
-- 
2.23.0