mailbox: fix various typos in comments

Fix trivial typos in mailbox driver comments.

s/Intergrated/Integrated/
s/extenstion/extension/
s/atleast/at least/
s/commnunication/communication/
s/assgined/assigned/
s/commnunication/communication/
s/recevied/received/
s/succeded/succeeded/
s/implmentation/implementation/
s/definiation/definition/
s/traget/target/
s/wont/won't/

Cc: trivial@kernel.org
Signed-off-by: Tom Saeger <tom.saeger@oracle.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
diff --git a/drivers/mailbox/mailbox-xgene-slimpro.c b/drivers/mailbox/mailbox-xgene-slimpro.c
index de26079..5b3a2dc 100644
--- a/drivers/mailbox/mailbox-xgene-slimpro.c
+++ b/drivers/mailbox/mailbox-xgene-slimpro.c
@@ -51,10 +51,10 @@ struct slimpro_mbox_chan {
 /**
  * X-Gene SlimPRO Mailbox controller data
  *
- * X-Gene SlimPRO Mailbox controller has 8 commnunication channels.
- * Each channel has a separate IRQ number assgined to it.
+ * X-Gene SlimPRO Mailbox controller has 8 communication channels.
+ * Each channel has a separate IRQ number assigned to it.
  *
- * @mb_ctrl:	Representation of the commnunication channel controller
+ * @mb_ctrl:	Representation of the communication channel controller
  * @mc:		Array of SlimPRO mailbox channels of the controller
  * @chans:	Array of mailbox communication channels
  *