tast: add shipping_kernel software dependency

kernel.ConfigVerify needs to distinguish debug kernel builds from
typical builds to avoid false positive failures.

BUG=b:305245446
TEST=fastbuild -C

Cq-Depend: chromium:4950217
Change-Id: I7e9af7813672872fd29db9c1dc2f7e12086826e5
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/tast/+/4950154
Commit-Queue: Allen Webb <[email protected]>
Reviewed-by: Jorge Lucangeli Obes <[email protected]>
Tested-by: Allen Webb <[email protected]>
Reviewed-by: Seewai Fu <[email protected]>
diff --git a/docs/test_dependencies.md b/docs/test_dependencies.md
index 21432a6..3e54510 100644
--- a/docs/test_dependencies.md
+++ b/docs/test_dependencies.md
@@ -206,6 +206,7 @@
     board has `SELINUX=permissive` in `/etc/selinux/config`, thus no policy
     will be enforced. This implies `selinux`.
 * `shill-wifi` - WiFi technology is enabled for Shill.
+* `shipping_kernel` - Debug-related kernel configs are not enabled.
 * `siernia` - Sirenia is present on a non-ManaTEE image.
 * `smartdim` - Use smart dim to defer the imminent screen dimming.
 * `smartctl` - Ability to run smartctl software utility.