mei.cfg: Add CONFIG_INTEL_MEI_TXE=m

This will create the TXE based Intel Management Excution Interface
to support additional chipsets.

Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>

features/amt/mei/mei.cfg

@@ -2,3 +2,4 @@ CONFIG_STAGING=y
 CONFIG_WATCHDOG_CORE=y
 CONFIG_INTEL_MEI=m
 CONFIG_INTEL_MEI_ME=m
+CONFIG_INTEL_MEI_TXE=m