sys/isa: minor spelling fixes.

No functional change.

sys/isa/isa_common.h

@@ -65,7 +65,7 @@ struct isa_device {
 #define DEVTOISA(dev)	((struct isa_device *) device_get_ivars(dev))
 
 /*
- * These functions are architecture dependant.
+ * These functions are architecture dependent.
  */
 extern void isa_init(device_t dev);
 extern struct resource *isa_alloc_resource(device_t bus, device_t child,

sys/isa/pnp.c

@@ -450,7 +450,7 @@ pnp_create_devices(device_t parent, pnp_id *p, int csn,
 				if (dev) {
 					/*
 					 * This is an optional device
-					 * indentifier string. Skipt it
+					 * identifier string. Skip it
 					 * for now.
 					 */
 					continue;

sys/isa/pnpparse.c

@@ -499,7 +499,7 @@ pnp_parse_resources(device_t dev, u_char *resources, int len, int ldn)
 				/*
 				 * Back to the common part; clear it
 				 * as its contents has already been copied
-				 * to each dependant.
+				 * to each dependent.
 				 */
 				config = &configs[0];
 				bzero(config, sizeof(*config));