tpm: Fix acpi attachment

The third arg of the DRIVER_MODULE arg is the driver to use. We want to
use the acpi bus version rather than the generic one. Otherwise, the
ACPI specific probe and attach f

tpm: Fix acpi attachment

The third arg of the DRIVER_MODULE arg is the driver to use. We want to
use the acpi bus version rather than the generic one. Otherwise, the
ACPI specific probe and attach functions aren't used and we don't see
the device.

Sponsored by: Netflix

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tpm: Refactor TIS and add a SPI attachment

Summary:
Though mostly used in x86 devices, TPM can be used on others, with a
direct SPI attachment. Refactor the TPM 2.0 driver set to use an
attachment

tpm: Refactor TIS and add a SPI attachment

Summary:
Though mostly used in x86 devices, TPM can be used on others, with a
direct SPI attachment. Refactor the TPM 2.0 driver set to use an
attachment interface, and implement a SPI bus interface.

Test Plan:
Tested on a Raspberry Pi 4, with a GeeekPi TPM2.0 module (SLB9670
TPM) using security/tpm2-tools tpm2_getcaps for very light testing against the
spibus attachment.

Reviewed by: kd
Obtained from: Juniper Networks, Inc.
Differential Revision: https://reviews.freebsd.org/D45069

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