MAINTAINERS: Add entry for TPM drivers

TPM drivers have currently no maintainers.  Add myself since I contributed
the TIS implementation.

Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
1 file changed