tpm: Clean up I2C TPM driver

Drop a lot of u-boot-isms and share common TIS API
between I2C driver and LPC driver.

Signed-off-by: Stefan Reinauer <reinauer@google.com>

Change-Id: I43be8eea0acbdaef58ef256a2bc5336b83368a0e
Reviewed-on: https://chromium-review.googlesource.com/175670
Commit-Queue: Stefan Reinauer <reinauer@chromium.org>
Tested-by: Stefan Reinauer <reinauer@chromium.org>
Reviewed-by: David Hendricks <dhendrix@chromium.org>
(cherry picked from commit 3fc8515b9d)
Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com>
Reviewed-on: http://review.coreboot.org/6855
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>

src/vendorcode/google/chromeos/vboot.c

@@ -20,7 +20,7 @@
 #include <types.h>
 #include <console/console.h>
 #include <arch/acpi.h>
-#include <pc80/tpm.h>
+#include <tpm.h>
 #include <reset.h>
 #include "chromeos.h"
 

src/vendorcode/google/chromeos/vboot_loader.c

@@ -24,7 +24,7 @@
 #include <cbmem.h>
 #include <console/console.h>
 #include <console/vtxprintf.h>
-#include <pc80/tpm.h>
+#include <tpm.h>
 #include <reset.h>
 #include <ramstage_loader.h>
 #include <romstage_handoff.h>