Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/drivers/mfd/ab8500-gpadc.c b/drivers/mfd/ab8500-gpadc.c
index bc93b2e..6421ad1 100644
--- a/drivers/mfd/ab8500-gpadc.c
+++ b/drivers/mfd/ab8500-gpadc.c
@@ -314,7 +314,7 @@
 	/* wait for completion of conversion */
 	if (!wait_for_completion_timeout(&gpadc->ab8500_gpadc_complete, 2*HZ)) {
 		dev_err(gpadc->dev,
-			"timeout: didnt recieve GPADC conversion interrupt\n");
+			"timeout: didn't receive GPADC conversion interrupt\n");
 		ret = -EINVAL;
 		goto out;
 	}