documentation: convert the Documentation directory to UTF-8

Convert files within the Documentation directory to UTF-8.

Adrian Bunk:
small additional fixes

Signed-off-by: John Anthony Kazos Jr. <jakj@j-a-k-j.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
diff --git a/Documentation/s390/Debugging390.txt b/Documentation/s390/Debugging390.txt
index 09939696..d30a281 100644
--- a/Documentation/s390/Debugging390.txt
+++ b/Documentation/s390/Debugging390.txt
@@ -2209,7 +2209,7 @@
 #3  0x5167e6 in readline_internal_char () at readline.c:454
 #4  0x5168ee in readline_internal_charloop () at readline.c:507
 #5  0x51692c in readline_internal () at readline.c:521
-#6  0x5164fe in readline (prompt=0x7ffff810 "\177ÿøx\177ÿ÷Ø\177ÿøxÀ")
+#6  0x5164fe in readline (prompt=0x7ffff810 "\177ÿøx\177ÿ÷Ø\177ÿøxÀ")
     at readline.c:349
 #7  0x4d7a8a in command_line_input (prrompt=0x564420 "(gdb) ", repeat=1,
     annotation_suffix=0x4d6b44 "prompt") at top.c:2091