efi_loader: add EFI_TCG2_PROTOCOL.SubmitCommand

This commit adds the EFI_TCG2_PROTOCOL.SubmitCommand
required in the TCG PC Client PFP spec.
SubmitCommand enables to send the raw command to the TPM device.

To implement this api, tpm2_submit_command() is added
into tpm-v2.c.

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
diff --git a/lib/tpm-v2.c b/lib/tpm-v2.c
index 235f8c2..2e7b27b 100644
--- a/lib/tpm-v2.c
+++ b/lib/tpm-v2.c
@@ -659,3 +659,9 @@
 
 	return 0;
 }
+
+u32 tpm2_submit_command(struct udevice *dev, const u8 *sendbuf,
+			u8 *recvbuf, size_t *recv_size)
+{
+	return tpm_sendrecv_command(dev, sendbuf, recvbuf, recv_size);
+}