image_types_zchunk: fix IMAGE_NAME

The backported code does not work properly in kirkstone branch
because kirkstone does not have following commit:
https://git.openembedded.org/openembedded-core/commit/?id=26d97acc71379ab6702fa54a23b6542a3f51779c

So re-add ${IMAGE_NAME_SUFFIX} to all ${IMAGE_NAME} uses.

Signed-off-by: Peter Marko <peter.marko@siemens.com>

classes/image_types_zchunk.bbclass

@@ -1,7 +1,7 @@
 CONVERSIONTYPES += "zck zckheader"
 
-CONVERSION_CMD:zck = "zck --output ${IMAGE_NAME}.${type}.zck -u --chunk-hash-type sha256 ${IMAGE_NAME}.${type}"
-CONVERSION_CMD:zckheader = "dd if=${IMAGE_NAME}.${type} of=${IMAGE_NAME}.${type}.zckheader count=1 bs=`zck_read_header -v ${IMAGE_NAME}.${type} | grep 'Header size' | cut -d ':' -f 2 | tr -d '[:space:]'`"
+CONVERSION_CMD:zck = "zck --output ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.zck -u --chunk-hash-type sha256 ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}"
+CONVERSION_CMD:zckheader = "dd if=${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} of=${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.zckheader count=1 bs=`zck_read_header -v ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} | grep 'Header size' | cut -d ':' -f 2 | tr -d '[:space:]'`"
 
 CONVERSION_DEPENDS_zck = "zchunk-native"
 CONVERSION_DEPENDS_zckheader = "zchunk-native"