[rom,doc] Update sigverify table

PR#25964 changed the DEV keys to be valid in TEST and RMA but the
table was not updated.

Signed-off-by: Amaury Pouly <[email protected]>

Author: pamaury

sw/device/silicon_creator/rom/doc/sigverify.md

@@ -42,7 +42,7 @@ not depend on the OTP value since it may not have been programmed yet.
 |           | TEST_UNLOCKED | PROD, PROD_END | DEV | RMA |
 |-----------|---------------|----------------|-----|-----|
 | Test keys | Yes           | No             | No  | OTP |
-| Dev keys  | No            | No             | OTP | No  |
+| Dev keys  | Yes           | No             | OTP | OTP |
 | Prod keys | Yes           | OTP            | OTP | OTP |
 
 ### Digest Computation