fastrpc-test: Add runtime validation and remove SoC-based filtering

[anankulk]

Summary

Replace hardcoded SoC-specific FastRPC test filtering with runtime
validation of actual test prerequisites.

• Enable FastRPC testing on QRB2210 and Glymur CRD by removing the
  hardcoded SoC-level skip.
• Remove the GPDSP0/GPDSP1 blacklist for QCS9075, QCS8275, QCS8300,
  and QCS9100. GPDSP availability is now determined entirely through
  runtime discovery.
• Validate FastRPC system library, DSP skeleton, and
  /dev/fastrpc-<domain> endpoint availability before execution.
  Domains or configurations that are not usable are skipped early
  with a clear message instead of being invoked and failing.
• Remove the SM8850 libhap_example HAP_mem DMA exception
  (only_hap_example_failed) so results are reported consistently
  across all targets.

Files changed

• Runner/suites/Multimedia/CDSP/fastrpc_test/run.sh
• Runner/utils/lib_fastrpc.sh

[Srikanth Muppandam (smuppand)]

only_hap_example_failed() now has no callers and still documents the SM8850 exception being removed. Remove the function and obsolete comment in this PR.

[Srikanth Muppandam (smuppand)]

soc_skip_all is initialized to 0 but can no longer become 1.Remove soc_skip_all and its block at lines 251–255 rename the section to describe the remaining GPDSP filter.

[anankulk]

Hi Srikanth Muppandam (@smuppand),

With the upcoming tag to be released for fastrpc recipe : we are enabling gpdsp test support as-well.
Once the tag is released, will address the comments and enable gdsp as-well along with the on-going changes.

[Srikanth Muppandam (smuppand)]

With these new changes, you have to fix the following code as well.

Runner/utils/lib_fastrpc.sh:151 — artifact discovery validates generic directories, not FastRPC artifacts

• Issue: FASTRPC_RESOLVED_LIB_SYS_DIR becomes /usr/lib whenever that directory exists. Likewise, the runner checks FASTRPC_RESOLVED_SKEL_BASE,
  although the base can exist without either v75 or v68. FASTRPC_RESOLVED_LIB_TEST_DIR is discovered but never required.

• Recommended fix: Resolve and validate the actual required library files, require a non-empty FASTRPC_RESOLVED_SKEL_PATH, and validate the required
  test-library artifacts rather than generic directories.

Runner/suites/Multimedia/CDSP/fastrpc_test/fastrpc_test.yaml:11 — YAML still documents removed GPDSP filtering

• Issue: The description says GPDSP domains are skipped on QCS9075/QCS8275/QCS8300/QCS9100, while the PR removes that blacklist.
• Recommended fix: Describe runtime domain and endpoint discovery instead.

Runner/suites/Multimedia/CDSP/fastrpc_test/run.sh:188 — remove unused SOC_MACHINE

• Recommended fix: Remove the assignment.

[Srikanth Muppandam (smuppand)]

This accepts only /dev/fastrpc-. A secure-only FastRPC domain is therefore rejected even though it is usable: the existing AudioPD FastRPC precheck already recognizes /dev/fastrpc-adsp-secure as a valid ADSP endpoint before falling back to /dev/fastrpc-adsp.

Because the presence of the secure node enables fastrpc_chardev_iface, auto mode filters that domain out and explicit selection fails. Put a shared fastrpc_domain_endpoint_available helper in lib_fastrpc.sh that accepts the secure and non-secure endpoint variants, then use it in both this pre-filter and the defensive re-check.

[Srikanth Muppandam (smuppand)]

The new discovery correctly resolves FASTRPC_RESOLVED_LIB_TEST_DIR only when libcalculator.so, libhap_example.so, or libmultithreading.so exists, but this prerequisite gate never requires it. A target with the system library and skeletons but without the test libraries still reaches fastrpc_test and fails at runtime, contradicting this change’s “missing artifacts should skip” policy. Add a clean SKIP gate for an empty FASTRPC_RESOLVED_LIB_TEST_DIR alongside the system-library and skeleton checks.