spitz: add tar.gz image fstype instead of ?=

diff --git a/conf/machine/spitz.conf b/conf/machine/spitz.conf
index 84c340f..6b08ec1 100644 (file)
--- a/conf/machine/spitz.conf
+++ b/conf/machine/spitz.conf
@@ -8,6 +8,6 @@ require conf/machine/include/zaurus-clamshell.conf
 PIVOTBOOT_EXTRA_RDEPENDS += "pivotinit ${PCMCIA_MANAGER}"
 
 PACKAGE_EXTRA_ARCHS += "iwmmxt"
-IMAGE_FSTYPES ?= "tar.gz"
+IMAGE_FSTYPES += "tar.gz"
 
 ROOT_FLASH_SIZE = "100"