Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/crypto/async_tx/async_xor.c b/crypto/async_tx/async_xor.c
index 079ae8c..bc28337 100644
--- a/crypto/async_tx/async_xor.c
+++ b/crypto/async_tx/async_xor.c
@@ -94,7 +94,7 @@
 		if (unlikely(!tx))
 			async_tx_quiesce(&submit->depend_tx);
 
-		/* spin wait for the preceeding transactions to complete */
+		/* spin wait for the preceding transactions to complete */
 		while (unlikely(!tx)) {
 			dma_async_issue_pending(chan);
 			tx = dma->device_prep_dma_xor(chan, dma_dest,