util/format: u_format_gen.h are using UTIL_ARCH_LITTLE_ENDIAN, include util/u_endian.h for it

Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Eric Engestrom <eric@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36891>

src/util/format/u_format_table.py

@@ -513,6 +513,7 @@ def write_format_table(formats):
     write_format_table_header(sys.stdout3)
 
     print('#include "util/macros.h"', file=sys.stdout3)
+    print('#include "util/u_endian.h"', file=sys.stdout3)
     print(file=sys.stdout3)
 
     print('#ifdef __cplusplus', file=sys.stdout3)