Update gitignore for new image format

.gitignore

@@ -1,5 +1,6 @@
 linux-*
 open-ath9k-htc-firmware
 PrawnOS-Alpha-c201-libre-2GB*
+PrawnOS-*-Alpha-c201-libre-2GB*
 tmp.*
 PrawnOS-Alpha-c201-libre-2GB-git*.img