tpm: prepare support for TPMv2.x commands

Choice between v1 and v2 compliant functions is done with the
configuration.

Create the various files that will receive TPMv2-only code on the same
scheme as for the TPMv1 code.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/lib/Makefile b/lib/Makefile
index 72504e7..e6cb4af 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -41,6 +41,7 @@
 obj-$(CONFIG_SUPPORT_EMMC_RPMB) += sha256.o
 obj-$(CONFIG_TPM) += tpm-common.o
 obj-$(CONFIG_TPM_V1) += tpm-v1.o
+obj-$(CONFIG_TPM_V2) += tpm-v2.o
 obj-$(CONFIG_RBTREE)	+= rbtree.o
 obj-$(CONFIG_BITREVERSE) += bitrev.o
 obj-y += list_sort.o