Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/drivers/gpu/vga/vgaarb.c b/drivers/gpu/vga/vgaarb.c
index ace2b16..be8d4cb 100644
--- a/drivers/gpu/vga/vgaarb.c
+++ b/drivers/gpu/vga/vgaarb.c
@@ -151,7 +151,7 @@
 static void vga_check_first_use(void)
 {
 	/* we should inform all GPUs in the system that
-	 * VGA arb has occured and to try and disable resources
+	 * VGA arb has occurred and to try and disable resources
 	 * if they can */
 	if (!vga_arbiter_used) {
 		vga_arbiter_used = true;
@@ -774,7 +774,7 @@
 	 */
 	spin_lock_irqsave(&vga_lock, flags);
 
-	/* If we are targetting the default, use it */
+	/* If we are targeting the default, use it */
 	pdev = priv->target;
 	if (pdev == NULL || pdev == PCI_INVALID_CARD) {
 		spin_unlock_irqrestore(&vga_lock, flags);