STMicroelectronics i2c tpm is the only one to have a different tristate
label.

Rename it "TPM Interface Specification 1.2 Interface (I2C - STMicroelectronics)"
Reviewed-by: NJason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: NChristophe Ricard <christophe-h.ricard@st.com>
[phuewe: corrected module name in the helptext]
Signed-off-by: NPeter Huewe <peterhuewe@gmx.de>