Added _types to the RTLModule (object model)

Added better description and tentative module name to the object mode…

Fix OMSRAM serialization in RocketTile memories.

Deny access to debug region for M-mode and below

Per discussion with @terpstra, doing this in a direct, non-diplomatic
fashion is the best near-term solution.

Upgrade DescribedSRAM to chisel3.

A per-line CFLUSH followed by a regular load that gets nacked in the s1
stage could kill the load without reporting to the pipeline that it had
been killed.

move config into package.scala

Add support for RVE 

The cache-flush instructions need to pass rs1 through to the cache.
Quine McCluskey decided to do that anyway, so the bug did not manifest.

ahb: allow supportsRETRY to be overridden in helper

devices: allow error devs that only support tl-ul

It passes VIP. ;)

* omsrams

* updating

add api-config-chipsalliance wit package/git submodule

TLToAHB: fix handling of hgrant on full AHB with EBT

add wit dependency/git submodule check to travis