drivers/spi/tpm: Clean up SPI TPM driver

1. Move common TIS macros to include/tpm.h.
2. Use common TIS macros while referring to status and access registers.
3. Add a new function claim_locality to properly check for required
access bits and claim locality 0.

BUG=b:36873582

Change-Id: I11bf3e8b6e1f50b7868c9fe4394a858488367287
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/19213
Tested-by: build bot (Jenkins)
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>

src/drivers/i2c/tpm/cr50.c

@@ -39,6 +39,7 @@
 #include <device/i2c.h>
 #include <endian.h>
 #include <timer.h>
+#include <tpm.h>
 #include "tpm.h"
 
 #if IS_ENABLED(CONFIG_ARCH_X86)

src/drivers/i2c/tpm/tpm.c

@@ -38,6 +38,7 @@
 #include <device/i2c.h>
 #include <endian.h>
 #include <timer.h>
+#include <tpm.h>
 #include "tpm.h"
 
 /* max. number of iterations after I2C NAK */

src/drivers/i2c/tpm/tpm.h

@@ -47,21 +47,6 @@ enum tpm_timeout {
 #define TPM_RSP_SIZE_BYTE 2
 #define TPM_RSP_RC_BYTE 6
 
-enum tis_access {
-	TPM_ACCESS_VALID = 0x80,
-	TPM_ACCESS_ACTIVE_LOCALITY = 0x20,
-	TPM_ACCESS_REQUEST_PENDING = 0x04,
-	TPM_ACCESS_REQUEST_USE = 0x02,
-};
-
-enum tis_status {
-	TPM_STS_VALID = 0x80,
-	TPM_STS_COMMAND_READY = 0x40,
-	TPM_STS_GO = 0x20,
-	TPM_STS_DATA_AVAIL = 0x10,
-	TPM_STS_DATA_EXPECT = 0x08,
-};
-
 #define	TPM_ACCESS(l)			(0x0000 | ((l) << 4))
 #define	TPM_STS(l)			(0x0001 | ((l) << 4))
 #define	TPM_DATA_FIFO(l)		(0x0005 | ((l) << 4))