[pentest] Add RNG FI tests

This commit pulls over the following tests from the pentest_edn
branch of nasahlpa/opentitan that has been used for the penetration testing:
- rng_fi_entropy_src_bias
- rng_fi_firmware_override
- rng_fi_edn_bias
- rng_fi_edn_resp_ack
- csrng_bias

Signed-off-by: Pascal Nasahl <nasahlpa@lowrisc.org>

sw/device/tests/penetrationtests/firmware/BUILD

@@ -14,6 +14,7 @@ package(default_visibility = ["//visibility:public"])
 FIRMWARE_DEPS_FPGA = [
     "//sw/device/tests/penetrationtests/firmware/fi:ibex_fi",
     "//sw/device/tests/penetrationtests/firmware/fi:otbn_fi",
+    "//sw/device/tests/penetrationtests/firmware/fi:rng_fi",
     "//sw/device/tests/penetrationtests/firmware/sca:aes_sca",
     "//sw/device/tests/penetrationtests/firmware/sca:ibex_sca",
     "//sw/device/tests/penetrationtests/firmware/sca:kmac_sca",
@@ -36,6 +37,7 @@ FIRMWARE_DEPS_FPGA = [
 FIRMWARE_DEPS_FI = [
     "//sw/device/tests/penetrationtests/firmware/fi:ibex_fi",
     "//sw/device/tests/penetrationtests/firmware/fi:otbn_fi",
+    "//sw/device/tests/penetrationtests/firmware/fi:rng_fi",
     "//sw/device/tests/penetrationtests/firmware/lib:extclk_sca_fi",
     "//sw/device/lib/base:csr",
     "//sw/device/lib/base:status",

sw/device/tests/penetrationtests/firmware/fi/BUILD

@@ -50,3 +50,28 @@ cc_library(
         "//sw/device/tests/penetrationtests/json:otbn_fi_commands",
     ],
 )
+
+cc_library(
+    name = "rng_fi",
+    srcs = ["rng_fi.c"],
+    hdrs = ["rng_fi.h"],
+    deps = [
+        "//sw/device/lib/base:memory",
+        "//sw/device/lib/base:status",
+        "//sw/device/lib/dif:csrng",
+        "//sw/device/lib/dif:csrng_shared",
+        "//sw/device/lib/dif:edn",
+        "//sw/device/lib/dif:entropy_src",
+        "//sw/device/lib/dif:rv_core_ibex",
+        "//sw/device/lib/runtime:log",
+        "//sw/device/lib/testing:csrng_testutils",
+        "//sw/device/lib/testing:edn_testutils",
+        "//sw/device/lib/testing:entropy_testutils",
+        "//sw/device/lib/testing:rv_core_ibex_testutils",
+        "//sw/device/lib/testing/test_framework:ujson_ottf",
+        "//sw/device/lib/ujson",
+        "//sw/device/sca/lib:sca",
+        "//sw/device/tests/penetrationtests/firmware/lib:sca_lib",
+        "//sw/device/tests/penetrationtests/json:rng_fi_commands",
+    ],
+)