*: add seccomp buildtag

Signed-off-by: Antonio Murdaca <runcom@redhat.com>

server/seccomp/seccomp.go

@@ -1,3 +1,5 @@
+// +build seccomp
+
 package seccomp
 
 import (

server/seccomp/seccomp_unsupported.go

@@ -0,0 +1,15 @@
+// +build !seccomp
+
+package seccomp
+
+import "github.com/opencontainers/runtime-tools/generate"
+
+// LoadProfileFromStruct takes a Seccomp struct and setup seccomp in the spec.
+func LoadProfileFromStruct(config Seccomp, specgen *generate.Generator) error {
+	return nil
+}
+
+// LoadProfileFromBytes takes a byte slice and decodes the seccomp profile.
+func LoadProfileFromBytes(body []byte, specgen *generate.Generator) error {
+	return nil
+}