Added uefi-sniff.log and capsule-update.log to required logs

For SystemReady IR certification, uefi-sniff and capsule-update logs
are required to be provided in the fw folder, so these were specified in
the IR results template.
Signed-off-by: Rebecca Pack <Rebecca.Pack@arm.com>

README.md

@@ -207,7 +207,9 @@ After collecting the results the directory tree should look like this:
 ├── docs/
 ├── fw/
 │   ├── readme.txt
-│   └── u-boot-sniff.log
+│   ├── u-boot-sniff.log
+│   ├── uefi-sniff.log
+│   └── capsule-update.log
 ├── manual-results/
 ├── os-logs/
 │   ├── linux-distro1-version/