tpm/tspi: clean up tpm_setup function flow

Introduce two helper functions for more readable code.
Use epilogue function instead of goto for error handling.

BUG=None
TEST=None

Change-Id: Ibea44880683a301e82ee2ba049003c36fcb44eba
Signed-off-by: Joel Kitching <kitching@google.com>
Reviewed-on: https://review.coreboot.org/29026
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>

0 files changed, 0 insertions, 0 deletions