Election for Greg Martin as Committer on OpenHW Group CORE-V Cores

Greg Martin <GMartin@quicklogic.com>, Github user gmartin102, is a key contributor on the CORE-V-MCU project which will be transitioned into CORE-V Cores.

Greg authored these pull requests:
https://github.com/openhwgroup/core-v-mcu/pulls?q=author%3Agmartin102

These issues were assigned to him:
https://github.com/openhwgroup/core-v-mcu/issues?q=assignee%3Agmartin102

As this project will be moved into CORE-V Cores, we need Greg to be a CORE-V Cores committer.

For these reasons and the long-term outlook for their involvement on the
team, it is my pleasure to nominate Greg as a committer on OpenHW Group CORE-V Cores.