Various spelling fixes

An assorted set of spelling fixes in various places.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20210309111510.79495-1-mjt@msgid.tls.msk.ru>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
diff --git a/disas/nanomips.cpp b/disas/nanomips.cpp
index 90e63b8..2b09655 100644
--- a/disas/nanomips.cpp
+++ b/disas/nanomips.cpp
@@ -837,7 +837,7 @@
                                  * an ASE attribute and the requested version
                                  * not having that attribute
                                  */
-                                dis = "ASE attribute missmatch";
+                                dis = "ASE attribute mismatch";
                                 return -5;
                             }
                             disassembly_function dis_fn = table[i].disassembly;