docs/specs/tpm: ACPI boot now supported for TPM/ARM

ACPI boot now is supported. Let's remove the comment
saying it is not.

Signed-off-by: Eric Auger <[email protected]>
Reviewed-by: Stefan Berger <[email protected]>
Reviewed-by: Igor Mammedov <[email protected]>
Message-Id: <[email protected]>
Tested-by: Ard Biesheuvel <[email protected]>
Reviewed-by: Michael S. Tsirkin <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>

Author: eauger

docs/specs/tpm.rst

@@ -346,8 +346,6 @@ In case an Arm virt machine is emulated, use the following command line:
     -drive if=pflash,format=raw,file=flash0.img,readonly \
     -drive if=pflash,format=raw,file=flash1.img
 
-  On Arm, ACPI boot with TPM is not yet supported.
-
 In case SeaBIOS is used as firmware, it should show the TPM menu item
 after entering the menu with 'ESC'.