greybus: update string descriptor length field to __u8 type to match spec

Greybus spec was updated to make the length field a single byte. Update
the type and remove endian handling of that field in the core.
Signed-off-by: Matt Porter <mporter@linaro.org>
Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

drivers/staging/greybus/core.c

@@ -279,7 +279,7 @@ static int create_string(struct greybus_module *gmod,
 		return -EINVAL;
 	}
 
-	string_size = le16_to_cpu(string->length);
+	string_size = string->length;
 	gmod_string = kzalloc(sizeof(*gmod_string) + string_size + 1, GFP_KERNEL);
 	if (!gmod_string)
 		return -ENOMEM;

drivers/staging/greybus/greybus_manifest.h

@@ -63,7 +63,7 @@ struct greybus_descriptor_module {
 };
 
 struct greybus_descriptor_string {
-	__le16	length;
+	__u8	length;
 	__u8	id;
 	__u8	string[0];
 };