MAINTAINERS: update maintainer email address.

Update Ed Mooring's email address and remove the machine specific
entries.

Signed-off-by: Ed Mooring <ed.mooring@gmail.com>

MAINTAINERS.md

@@ -1,22 +1,15 @@
 # libmetal Maintainers
 
-libmetal project is maintained by the OpenAMP open source community.
+The libmetal project is maintained by the OpenAMP open source community.
 Everyone is encouraged to submit issues and changes to improve libmetal.
 
 The intention of this file is to provide a set of names that developers can
 consult when they have a question about OpenAMP and to provide a a set of
 names to be CC'd when submitting a patch.
 
 ## Project Administration
-Ed Mooring <ed.mooring@linaro.org>
+Ed Mooring <ed.mooring@gmail.com>
 Arnaud Pouliquen <arnaud.pouliquen@st.com>
 
 ### All patches CC here
 openamp-rp@lists.openampproject.org
-
-## Machines
-### Xilinx Platform - Zynq-7000
-Ed Mooring <ed.mooring@linaro.org>
-
-### Xilinx Platform - Zynq UltraScale+ MPSoC
-Ed Mooring <ed.mooring@linaro.org>