Add Sundar Nadathur candidacy for Cyborg PTL.

Change-Id: Iaf98f5839bc3944c79b7923da0a36c31da2cf744

candidates/train/Cyborg/sundar.nadathur@intel.com

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+Hello Stackers,
+  I'd like to announce my candidacy for PTL role of Cyborg for the Train cycle.
+
+  Cyborg got to a rolling start in 2018 led by Howard (Zhipeng) Huang.
+  Under his leadership, we established the basic infrastructure for
+  sustained growth, resulting in our official release in Rocky. During the
+  Stein release, with Li Liu as the PTL, we have made substantial progress,
+  particularly in defining a clean database schema and device model that
+  will form the basis for future work. In both cycles, we had several
+  illuminating discussions with Nova developers to define how Cyborg would
+  interact with Nova.
+
+  As we move forward, there is considerable potential in Cyborg, as
+  evidenced by the interest shown by cloud/telco operators around the
+  world. To realize this potential and deliver real-world use cases, here
+  is what we'll aim to accomplish in the Train cycle:
+
+  * Complete the integration with Nova, so that we can launch VMs with
+    accelerators attached to them.
+  * Enable consumption of accelerators either as raw devices or as offloaded
+    functions.
+  * Support a variety of devices, by enabling Cyborg drivers for them.
+  * Lay the groundwork for features, such as performance monitoring and
+    health monitoring, to enable usage in production.
+
+Thanks.
+Sundar Nadathur