Add EPEL 8 repos in support of CentOS 8

The EPEL repos provide many extra rpms not available from
CentOS, but known to be compatible with CentOS.
We have historically used a few rpms out of EPEL-7.
No doubt we will eventually want a few rpms from EPEL-8
to replace those originating from EPEL-7.



Change-Id: If7b3e8cffa8134e4aa6d469dd495655312516119
Signed-off-by: Scott Little <scott.little@windriver.com>

centos-mirror-tools/rpm-gpg-keys/RPM-GPG-KEY-EPEL-8

@@ -0,0 +1,28 @@
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+
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+=84m8
+-----END PGP PUBLIC KEY BLOCK-----

centos-mirror-tools/yum.repos.d/StarlingX-EPEL-8.repo

@@ -0,0 +1,18 @@
+########
+#### EPEL 8 
+
+[Starlingx-epel-8-Everything]
+name=Starlingx-Epel-8
+baseurl=https://dl.fedoraproject.org/pub/epel/8/Everything/x86_64/
+gpgcheck=1
+gpgkey=file:///export/config/rpm-gpg-keys/RPM-GPG-KEY-EPEL-8
+enabled=1
+
+[Starlingx-epel-8-Everything-source]
+name=Starlingx-Epel-8-Everything-source
+baseurl=https://dl.fedoraproject.org/pub/epel/8/Everything/SRPMS/
+gpgcheck=0
+#gpgkey=file:///export/config/rpm-gpg-keys/RPM-GPG-KEY-EPEL-8
+enabled=1
+
+