[dma] V1+V2 Review & Signoff

@rswarbrick is already working on this.

Since Aug 1, 2025.

## Verification specification checks / updates
- [ ] https://github.com/lowRISC/opentitan/issues/27797
- [ ] https://github.com/lowRISC/opentitan/issues/27798
- [ ] https://github.com/lowRISC/opentitan/issues/27799
- [ ] https://github.com/lowRISC/opentitan/issues/27800

## DV environment checks
- [ ] https://github.com/lowRISC/opentitan/issues/27801

## Test suite / results checks
- [ ] SIM_SMOKE_TEST_PASSING
- [ ] SIM_CSR_MEM_TEST_SUITE_PASSING
- [ ] SIM_SMOKE_REGRESSION_SETUP
- [ ] SIM_NIGHTLY_REGRESSION_SETUP plus TB_LINT_SETUP
- [ ] SIM_ALL_TESTS_PASSING
- [ ] SIM_NIGHTLY_REGRESSION_V2
- [ ] SIM_CODE_COVERAGE_V2
- [ ] SIM_FUNCTIONAL_COVERAGE_V2

## Tools checks
- [ ] SIM_ALT_TOOL_SETUP

## Issues checks
- [ ] NO_HIGH_PRIORITY_ISSUES_PENDING
- [ ] ALL_LOW_PRIORITY_ISSUES_ROOT_CAUSED

## Security checks
Any non-standard security countermeasures are excluded from this signoff, hence SEC_CM_PLANNED is _waived_.

## Various checks

The following items are also part of the V1 signoff checklist.
They are explicitly included in tasks listed above and are not tracked separately; their current status is visible in the [checklist document for this IP](https://github.com/lowRISC/opentitan/blob/master/hw/ip/dma/doc/checklist.md):
- DV_DOC_DRAFT_COMPLETED (done as part of DV_DOC_COMPLETED)
- TB_TOP_CREATED (done as part of DV_DOC_COMPLETED)
- PRELIMINARY_ASSERTION_CHECKS_ADDED (done as part of DV_DOC_COMPLETED)
- SIM_TB_ENV_CREATED (done as part of DV_DOC_COMPLETED)
- SIM_RAL_MODEL_GEN_AUTOMATED (done as part of DV_DOC_COMPLETED)
- CSR_CHECK_GEN_AUTOMATED (done as part of DV_DOC_COMPLETED)
- SIM_COVERAGE_MODEL_ADDED (done as part of DV_DOC_COMPLETED)
- TB_LINT_SETUP (done as part of SIM_NIGHTLY_REGRESSION_SETUP)
- STD_TEST_CATEGORIES_PLANNED (done as part of TESTPLAN_REVIEWED)
- V2_CHECKLIST_SCOPED (done as part of TESTPLAN_REVIEWED)

The following item does not apply to this IP, as only the one configuration currently instantiated in Darjeeling gets verified:
- TB_GEN_AUTOMATED

This module includes the SHA2 submodule, which has reached V3 through HMAC, hence the following items are fulfilled.
- PRE_VERIFIED_SUB_MODULES_V1
- PRE_VERIFIED_SUB_MODULES_V2

The following items are also part of the V2 signoff checklist.
They are explicitly included in tasks listed above or not necessary, and they are not tracked separately.
Their current status is visible in the [checklist document for this IP](https://github.com/lowRISC/opentitan/blob/master/hw/ip/dma/doc/checklist.md):
- DESIGN_DELTAS_CAPTURED_V2 (no design deltas since initial DV document and testplan review, which falls together with this review)