MDEV-23506 mariadb-connector-c-devel package from standard RHEL 8 repo...

MDEV-23506 mariadb-connector-c-devel package from standard RHEL 8 repo conflicts with MariaDB's packages

added alternative name for MariaDB-devel package to replace
mariadb-connector-c-devel from RHEL 8 distribution.
this patch is for 10.3+ on RHEL/Centos 8

cmake/cpack_rpm.cmake

@@ -239,6 +239,7 @@ ELSEIF(RPM MATCHES "(rhel|centos)8")
   ALTERNATIVE_NAME("server" "mariadb-server-utils")
   ALTERNATIVE_NAME("shared" "mariadb-connector-c" ${MARIADB_CONNECTOR_C_VERSION}-1)
   ALTERNATIVE_NAME("shared" "mariadb-connector-c-config" ${MARIADB_CONNECTOR_C_VERSION}-1)
+  ALTERNATIVE_NAME("devel" "mariadb-connector-c-devel" ${MARIADB_CONNECTOR_C_VERSION}-1)
   SETA(CPACK_RPM_client_PACKAGE_PROVIDES "mariadb-galera = 3:%{version}-%{release}")
   SETA(CPACK_RPM_common_PACKAGE_PROVIDES "mariadb-galera-common = 3:%{version}-%{release}")
   SETA(CPACK_RPM_common_PACKAGE_REQUIRES "MariaDB-shared")