[PATCH] speakup: include types.h so u_char is a known type

[Eric Curtin]

Fixes build of utils.h header file, occurred when building kernel on
postmarketOS on Lenovo Duet Chromebook.

  drivers/accessibility/speakup/utils.h:57:9: error: unknown type name 'u_char'; did you mean 'char'?
     57 |         u_char *pn = (u_char *)name;
        |         ^~~~~~
        |         char

Fixes: 6a5c94d92699 ("speakup: Generate speakupmap.h automatically")
Signed-off-by: Eric Curtin <ecurtin@xxxxxxxxxx>
---
 drivers/accessibility/speakup/utils.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/accessibility/speakup/utils.h b/drivers/accessibility/speakup/utils.h
index 4bf2ee8ac246..f6fe477ecb28 100644
--- a/drivers/accessibility/speakup/utils.h
+++ b/drivers/accessibility/speakup/utils.h
@@ -7,6 +7,7 @@
  */
 
 #include <stdio.h>
+#include <sys/types.h>
 
 #define MAXKEYS 512
 #define MAXKEYVAL 160
-- 
2.37.3