Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c
index 08c1948..10d0a5e 100644
--- a/drivers/infiniband/hw/nes/nes_hw.c
+++ b/drivers/infiniband/hw/nes/nes_hw.c
@@ -80,7 +80,7 @@
 
 #ifdef CONFIG_INFINIBAND_NES_DEBUG
 static unsigned char *nes_iwarp_state_str[] = {
-	"Non-Existant",
+	"Non-Existent",
 	"Idle",
 	"RTS",
 	"Closing",
@@ -91,7 +91,7 @@
 };
 
 static unsigned char *nes_tcp_state_str[] = {
-	"Non-Existant",
+	"Non-Existent",
 	"Closed",
 	"Listen",
 	"SYN Sent",