docs: Fix some typos (most found by codespell)

Signed-off-by: NStefan Weil <sw@weilnetz.de>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NThomas Huth <thuth@redhat.com>

docs/COLO-FT.txt

@@ -104,7 +104,7 @@ Primary side.
 COLO Proxy:
 Delivers packets to Primary and Seconday, and then compare the responses from
 both side. Then decide whether to start a checkpoint according to some rules.
-Please refer to docs/colo-proxy.txt for more informations.
+Please refer to docs/colo-proxy.txt for more information.
 
 Note:
 HeartBeat has not been implemented yet, so you need to trigger failover process

docs/interop/vhost-user.txt

@@ -666,12 +666,12 @@ Master message types
       Equivalent ioctl: VHOST_SET_VRING_ENDIAN
       Master payload: vring state description
 
-      Set the endianess of a VQ for legacy devices. Little-endian is indicated
+      Set the endianness of a VQ for legacy devices. Little-endian is indicated
       with state.num set to 0 and big-endian is indicated with state.num set
       to 1. Other values are invalid.
       This request should be sent only when VHOST_USER_PROTOCOL_F_CROSS_ENDIAN
       has been negotiated.
-      Backends that negotiated this feature should handle both endianesses
+      Backends that negotiated this feature should handle both endiannesses
       and expect this message once (per VQ) during device configuration
       (ie. before the master starts the VQ).
 

docs/replay.txt

@@ -320,7 +320,7 @@ Here is the list of events that are written into the log:
    async event id from the following list:
      - REPLAY_ASYNC_EVENT_BH. Bottom-half callback. This event synchronizes
        callbacks that affect virtual machine state, but normally called
-       asyncronously.
+       asynchronously.
        Argument: 8-byte operation id.
      - REPLAY_ASYNC_EVENT_INPUT. Input device event. Contains
        parameters of keyboard and mouse input operations