dm-verity-image-initramfs: Set IMAGE_NAME_SUFFIX to empty

According to the Yocto reference manual [1], the IMAGE_NAME_SUFFIX should
be set to empty for the initramfs image. Otherwise, we may incur a build
error like following due to the initrd check in live-vm-common.bbclass:
  ERROR: core-image-minimal-1.0-r0 do_bootimg: build-test/tmp/deploy/images/genericx86-64/dm-verity-image-initramfs-genericx86-64.cpio.gz is invalid. initrd image creation failed.
  ERROR: core-image-minimal-1.0-r0 do_bootimg: ExecutionError('build-test/tmp/work/genericx86_64-poky-linux/core-image-minimal/1.0/temp/run.build_hddimg.1961965', 1, None, None)
  ERROR: Logfile of failure stored in: build-test/tmp/work/genericx86_64-poky-linux/core-image-minimal/1.0/temp/log.do_bootimg.1961965
  ERROR: Task (poky/meta/recipes-core/images/core-image-minimal.bb:do_bootimg) failed with exit code '1'

[1] https://docs.yoctoproject.org/ref-manual/variables.html#term-IMAGE_NAME_SUFFIX

Signed-off-by: Kevin Hao <kexin.hao@windriver.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/recipes-core/images/dm-verity-image-initramfs.bb b/recipes-core/images/dm-verity-image-initramfs.bb
index 78f7b49..4256e19 100644
--- a/recipes-core/images/dm-verity-image-initramfs.bb
+++ b/recipes-core/images/dm-verity-image-initramfs.bb
@@ -18,6 +18,8 @@ PACKAGE_INSTALL = " \
 IMAGE_FEATURES = ""
 IMAGE_LINGUAS = ""
 
+IMAGE_NAME_SUFFIX ?= ""
+
 # Can we somehow inspect reverse dependencies to avoid these variables?
 python __anonymous() {
     verity_image = d.getVar('DM_VERITY_IMAGE')