Fix building with GCC 4.9

It doesn't like empty initializers.

Change-Id: If2988e60401155f87ee3369c77f00ccf9332012c
Signed-off-by: Evgeny Zinoviev <me@ch1p.io>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/36629
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
diff --git a/pickit2_spi.c b/pickit2_spi.c
index 784dc13..2936ee8 100644
--- a/pickit2_spi.c
+++ b/pickit2_spi.c
@@ -49,7 +49,7 @@
 const struct dev_entry devs_pickit2_spi[] = {
 	{0x04D8, 0x0033, OK, "Microchip", "PICkit 2"},
 
-	{}
+	{0}
 };
 
 static libusb_device_handle *pickit2_handle;