dm: tpm: Convert I2C driver to driver model

Convert the tpm_tis_i2c driver to use driver model and update boards which
use it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Christophe Ricard<christophe-h.ricard@st.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
diff --git a/configs/snow_defconfig b/configs/snow_defconfig
index f59aa3f..7624ad2 100644
--- a/configs/snow_defconfig
+++ b/configs/snow_defconfig
@@ -18,6 +18,7 @@
 CONFIG_DEBUG_UART_S5P=y
 CONFIG_DEBUG_UART_BASE=0x12c30000
 CONFIG_DEBUG_UART_CLOCK=100000000
+CONFIG_DM_TPM=y
 CONFIG_TPM_TIS_I2C=y
 CONFIG_DM_I2C=y
 CONFIG_DM_I2C_COMPAT=y