drivers/spi/tpm: make tpm_info object local to compilation unit

The tpm_info object is a global, but its symbol does not need to
be exposed to the world as its only used within tpm.c.

BUG=b:36598499

Change-Id: Idded3dad8d0d1c3535bddfb359009210d3439703
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/19057
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins)

0 files changed, 0 insertions, 0 deletions