attestation: Support a new sysfs tpm class directory

Kernel TPM patches from 4.x moved /sys/class/misc/tpm0 to /sys/class/tpm/tpm0.
Support both paths in attestation.

BUG=chromium:573368

Change-Id: I02b68f0c4ce7cbcc307471e203db376129a662db
1 file changed
tree: 8df5e74004b5f462666728f292378254b516fe3c
  1. attestation/
  2. tpm_manager/
  3. trunks/
  4. MODULE_LICENSE_APACHE2
  5. NOTICE