[test] Fix lack of entropy for wycheproof test

The test did not initialize the entropy complex to auto mode, and it
would exhaust the available, finite entropy generated during boot,
leading to freezing and timeouts.

Add this test back to the FPGA suite.

Signed-off-by: Alexander Williams <awill@opentitan.org>

sw/device/tests/crypto/BUILD

@@ -177,8 +177,7 @@ opentitan_functest(
     name = "rsa_3072_verify_functest_wycheproof",
     srcs = ["rsa_3072_verify_functest.c"],
     cw310 = cw310_params(
-        timeout = "long",
-        tags = ["broken"],  # FIXME #16805 hangs at vector 170
+        timeout = "moderate",
     ),
     targets = [
         "cw310_test_rom",
@@ -187,10 +186,10 @@ opentitan_functest(
     ],
     verilator = verilator_params(
         timeout = "eternal",
-        tags = ["broken"],  # FIXME #16805 hangs at vector 165 after ~3h
     ),
     deps = [
         ":rsa_3072_verify_testvectors_wycheproof_header",
+        "//sw/device/lib/crypto/drivers:entropy",
         "//sw/device/lib/crypto/drivers:hmac",
         "//sw/device/lib/crypto/drivers:otbn",
         "//sw/device/lib/crypto/impl/rsa:rsa_3072_verify",
@@ -214,6 +213,7 @@ opentitan_functest(
     ),
     deps = [
         ":rsa_3072_verify_testvectors_hardcoded_header",
+        "//sw/device/lib/crypto/drivers:entropy",
         "//sw/device/lib/crypto/drivers:hmac",
         "//sw/device/lib/crypto/drivers:otbn",
         "//sw/device/lib/crypto/impl/rsa:rsa_3072_verify",

sw/device/tests/crypto/rsa_3072_verify_functest.c

@@ -3,6 +3,7 @@
 // SPDX-License-Identifier: Apache-2.0
 
 #include "sw/device/lib/base/memory.h"
+#include "sw/device/lib/crypto/drivers/entropy.h"
 #include "sw/device/lib/crypto/drivers/otbn.h"
 #include "sw/device/lib/crypto/impl/rsa/rsa_3072_verify.h"
 #include "sw/device/lib/runtime/log.h"
@@ -60,6 +61,9 @@ bool test_main(void) {
   // Stays true only if all tests pass.
   bool result = true;
 
+  // Set entropy complex to auto mode.
+  CHECK_STATUS_OK(entropy_complex_init());
+
   // The definition of `RULE_NAME` comes from the autogen Bazel rule.
   LOG_INFO("Starting rsa_3072_verify_test:%s", RULE_NAME);
   for (uint32_t i = 0; i < RSA_3072_VERIFY_NUM_TESTS; i++) {