Add tpmd_dev from the tpm-emulator source to the kernel

This adds tpmd_dev from the tpm-emulator source, so we don't have to compile it externally.  It also adds config.h, which unfortunately is not in the source---it's an intermediate compilation result.

Signed-off-by:  <semenzato@chromium.org>

Review URL: http://codereview.chromium.org/1602016



[move tpmd_dev/ to drivers/char/tpm and modifed Makefile there]
Signed-off-by: Tianyi Gou <tgou@codeaurora.org>

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>