Dimitar Dimitrov as TI PRU maintainer

[Jeff Law via Gcc]

I am pleased to announce that the GCC Steering Committee has appointed 
Dimitar Dimitrov as maintainer of the TI PRU port in GCC.

Dimitar, please update your listing in the MAINTAINERS file. Sorry it's 
taken so long to make this happen.  It just kept slipping off my radar.


Thanks,

Jeff