[PATCH] doc: qemu: switch swtpm instruction to 'tpm autostart'

[Ilias Apalodimas]

We don't have a documentation page for our TPM subsystem.  I plan
on sending one in the future,  but in the meantime document the
new 'tpm autostart' command in the QEMU instructions while using
a SWTPM

Signed-off-by: Ilias Apalodimas <ilias.apalodimas at linaro.org>
---
 doc/board/emulation/qemu-arm.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/doc/board/emulation/qemu-arm.rst b/doc/board/emulation/qemu-arm.rst
index 16f66388eb1f..30819637723d 100644
--- a/doc/board/emulation/qemu-arm.rst
+++ b/doc/board/emulation/qemu-arm.rst
@@ -113,7 +113,7 @@ In a second console invoke qemu-system-aarch64 with::
 
 Enable the TPM on U-Boot's command line with::
 
-    tpm2 startup TPM2_SU_CLEAR
+    tpm autostart
 
 Debug UART
 ----------
-- 
2.40.1