speakup: Fix bogus caps on speaking unicode characters

commit 33590c18 ("speakup: Support spelling unicode characters")
mistakenly passed unicode characters to IS_CHAR(), which only
supports latin1.  Let's assume non-latin1 is lower case, like is done
in spell_word().
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Reviewed-by: Chris Brannon <chris@the-brannons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/speakup/main.c

@@ -433,12 +433,12 @@ static void speak_char(u16 ch)
 	struct var_t *direct = spk_get_var(DIRECT);
 
 	if (ch >= 0x100 || (direct && direct->u.n.value)) {
-		if (IS_CHAR(ch, B_CAP)) {
+		if (ch < 0x100 && IS_CHAR(ch, B_CAP)) {
 			spk_pitch_shift++;
 			synth_printf("%s", spk_str_caps_start);
 		}
 		synth_putwc_s(ch);
-		if (IS_CHAR(ch, B_CAP))
+		if (ch < 0x100 && IS_CHAR(ch, B_CAP))
 			synth_printf("%s", spk_str_caps_stop);
 		return;
 	}