Fix spelling of "occurred".

Signed-off-by: Vagrant Cascadian <vagrant@debian.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/net/ne2000_base.c b/drivers/net/ne2000_base.c
index 71d133c..67bf140 100644
--- a/drivers/net/ne2000_base.c
+++ b/drivers/net/ne2000_base.c
@@ -582,7 +582,7 @@
 	/*
 	 * Read in as many packets as we can and acknowledge any and receive
 	 * interrupts. Since the buffer has overflowed, a receive event of
-	 * some kind will have occured.
+	 * some kind will have occurred.
 	 */
 	dp83902a_RxEvent();
 	DP_OUT(base, DP_ISR, DP_ISR_RxP|DP_ISR_RxE);
@@ -592,7 +592,7 @@
 	DP_OUT(base, DP_TCR, DP_TCR_NORMAL);
 
 	/*
-	 * If a transmit command was issued, but no transmit event has occured,
+	 * If a transmit command was issued, but no transmit event has occurred,
 	 * restart it here.
 	 */
 	DP_IN(base, DP_ISR, isr);