tpm: add TPM2_Startup command support

Add support for the TPM2_Startup command.

Change the command file and the help accordingly.

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/include/tpm-v2.h b/include/tpm-v2.h
index fac0808..a9c604d 100644
--- a/include/tpm-v2.h
+++ b/include/tpm-v2.h
@@ -125,4 +125,13 @@
 	TPM2_ALG_NULL		= 0x10,
 };
 
+/**
+ * Issue a TPM2_Startup command.
+ *
+ * @mode	TPM startup mode
+ *
+ * @return code of the operation
+ */
+u32 tpm2_startup(enum tpm2_startup_types mode);
+
 #endif /* __TPM_V2_H */