In the documentation[1], it is not mentioned to apply a patch to EAP7.

The following command are examples to apply a patch to EAP7.
—
./apply-updates.sh /jboss/jboss-eap-7.0/standalone/deployments/business-central.war eap7.x-bc
./apply-updates.sh /jboss/jboss-eap-7.0/standalone/deployments/dashbuilder.war eap7.x-dashbuilder
./apply-updates.sh /jboss/jboss-eap-7.0/standalone/deployments/kie-server.war eap7.x-kie-server
—

[1]
8.2. Applying Patches in Red Hat JBoss BPM Suite 6.4
8.3. Patching Other Platforms and Applications
https://access.redhat.com/documentation/en-us/red_hat_jboss_bpm_suite/6.4/html/installation_guide/chap_patching_and_upgrading