samples/seccomp: Fix hostprogs variable

In f6041c1d, a separate SAMPLES_SECCOMP option was added. This changed
hostprogs-y to hostprogs-m, so adjust it.

Signed-off-by: Ricky Zhou <rickyz@chromium.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
1 file changed