[newlib-cygwin] ctype: Avoid GCC note in towctrans_l.c

[Sebastian Huber <sh@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=0e5f252bc79f137a7747643dd1bc2693d98c0668

commit 0e5f252bc79f137a7747643dd1bc2693d98c0668
Author: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date:   Fri Jul 27 09:28:55 2018 +0200

    ctype: Avoid GCC note in towctrans_l.c
    
    The previous version genenerated the following GCC note:
    
    towctrans_l.c:44:1: note: offset of packed bit-field 'diff' has changed in GCC 4.4
     caseconv_table [] = {
     ^~~~~~~~~~~~~~
    
    Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>

Diff:
---
 newlib/libc/ctype/towctrans_l.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/newlib/libc/ctype/towctrans_l.c b/newlib/libc/ctype/towctrans_l.c
index 7b8a23c..b829266 100644
--- a/newlib/libc/ctype/towctrans_l.c
+++ b/newlib/libc/ctype/towctrans_l.c
@@ -37,8 +37,8 @@ enum {TO1, TOLO, TOUP, TOBOTH};
 enum {EVENCAP, ODDCAP};
 static struct caseconv_entry {
   uint_least32_t first: 21;
-  uint_least8_t diff: 8;
-  uint_least8_t mode: 2;
+  uint_least32_t diff: 8;
+  uint_least32_t mode: 2;
   int_least32_t delta: 17;
 } __attribute__ ((packed))
 caseconv_table [] = {