README: Fix TSC list mistake

2b90a9f2 missed a name on the TSC list.
This commit fixes that mistake.

The TSC list is moving to the openbmc/openbmc README because the docs
README is becoming specific to the docs repo and the openbmc/openbmc
README is for more general project information since the openbmc/openbmc
README is most likely the first landing spot of anyone new to
the project.

Change-Id: I8884df9e7abc05d4551fe745dfb729c7b7dad0d8
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>