es2tsb configuration of bootrom: MAKE IT BUILD AGAIN
es2tsb configuration of bootrom: MAKE IT BUILD AGAIN

A previous "security review" patch added code to halt-and-catch-fire in the case
of being unable to write the boot-status DME attribute, which requires some extra
machinery to avoid re-entrancy.  Implement that functionality for ES2, allowing
the es2tsb configuration to build again.

Testing Done: bring up firmware on apb2
Bug Number: Trivial
Review URL: https://reviews.leaflabs.com/r/1689/
Reviewed by: Jun Li <li_jun@projectara.com>

Signed-off-by: Eli Sennesh <5ebe47bba478951130dff4ea23416219c2dfa45d@leaflabs.com>

projectara/bootrom,gregkh/bootrom