RFR: 8243321: Add Entrust root CA - G4 to Oracle Root CA program

[Rajan Halade]

Please review this patch to add “Entrust Root Certification Authority - G4” 
root certificate to cacerts store.

Webrev: http://cr.openjdk.java.net/~rhalade/8243321/webrev.00/ 
<http://cr.openjdk.java.net/~rhalade/8243321/webrev.00/>
Release note: https://bugs.openjdk.java.net/browse/JDK-8250756 
<https://bugs.openjdk.java.net/browse/JDK-8250756>

Thanks,
Rajan