lib/oe/rootfs: Fix DEBUGFS generation for opkg & openssl-cnf
When enabling extra DEBUGFS image generation with opkg, the following error is
seen when openssl-cnf is included in the image.
Collected errors:
* file_md5sum_alloc: Failed to open file /mnt/cs-builds/anders/oe-build/build-ccu/tmp/work/ccu-oe-linux-gnueabi/ccu-image/1.0-r0/rootfs/usr/lib/ssl/openssl.cnf: No such file or directory.
Lots of similar issues was fixed by an earlier commit in oe-core,
5084ed9401250ed269a49d27b303806ab173c5d5, but openssl-cnf is outside of that fix.
Followup to [YOCTO #9490]
Signed-off-by: Anders Darander <anders@chargestorm.se>
Signed-off-by: Ross Burton <ross.burton@intel.com>
