meta-phosphor: Add vmlinux to image types

Ensure the vmlinux is archived as part of the build artifacts for
debugging.

Signed-off-by: Joel Stanley <joel@jms.id.au>
Change-Id: If84c284cfc60f6b8ae5c641ef7ee06255f29d8c1
diff --git a/meta-phosphor/conf/machine/include/obmc-bsp-common.inc b/meta-phosphor/conf/machine/include/obmc-bsp-common.inc
index 158c569..9098a8a 100644
--- a/meta-phosphor/conf/machine/include/obmc-bsp-common.inc
+++ b/meta-phosphor/conf/machine/include/obmc-bsp-common.inc
@@ -3,7 +3,7 @@
 #@DESCRIPTION: Common machine configuration for OpenBMC chips
 
 KERNEL_CLASSES ?= "kernel-fitimage"
-KERNEL_IMAGETYPES ?= "fitImage"
+KERNEL_IMAGETYPES ?= "fitImage vmlinux"
 
 # Static images. This is the default if no other layout is specified.
 IMAGE_FSTYPES += "${@bb.utils.contains_any('DISTRO_FEATURES', \