[cov] Reduce coverage RAM usage from some test libraries

Change-Id: I8975cccb7d2a300e4e7cca67291a003e1023cada
Signed-off-by: Yi-Hsuan Deng <yhdeng@google.com>

Author: sasdf

sw/device/lib/dif/BUILD

@@ -104,6 +104,8 @@ cc_library(
     hdrs = [
         "dif_alert_handler.h",
     ],
+    # FIXME: Instrumenting alert_handler uses a large amount of RAM.
+    features = ["-coverage"],
     deps = [
         ":base",
         "//hw/top_earlgrey:alert_handler_c_regs",

sw/device/tests/crypto/cryptotest/json/BUILD

@@ -8,6 +8,7 @@ cc_library(
     name = "commands",
     srcs = ["commands.c"],
     hdrs = ["commands.h"],
+    features = ["-coverage"],
     deps = [
         ":aes_commands",
         ":aes_gcm_commands",
@@ -26,68 +27,78 @@ cc_library(
     name = "aes_commands",
     srcs = ["aes_commands.c"],
     hdrs = ["aes_commands.h"],
+    features = ["-coverage"],
     deps = ["//sw/device/lib/ujson"],
 )
 
 cc_library(
     name = "aes_gcm_commands",
     srcs = ["aes_gcm_commands.c"],
     hdrs = ["aes_gcm_commands.h"],
+    features = ["-coverage"],
     deps = ["//sw/device/lib/ujson"],
 )
 
 cc_library(
     name = "drbg_commands",
     srcs = ["drbg_commands.c"],
     hdrs = ["drbg_commands.h"],
+    features = ["-coverage"],
     deps = ["//sw/device/lib/ujson"],
 )
 
 cc_library(
     name = "ecdsa_commands",
     srcs = ["ecdsa_commands.c"],
     hdrs = ["ecdsa_commands.h"],
+    features = ["-coverage"],
     deps = ["//sw/device/lib/ujson"],
 )
 
 cc_library(
     name = "hmac_commands",
     srcs = ["hmac_commands.c"],
     hdrs = ["hmac_commands.h"],
+    features = ["-coverage"],
     deps = ["//sw/device/lib/ujson"],
 )
 
 cc_library(
     name = "hash_commands",
     srcs = ["hash_commands.c"],
     hdrs = ["hash_commands.h"],
+    features = ["-coverage"],
     deps = ["//sw/device/lib/ujson"],
 )
 
 cc_library(
     name = "ecdh_commands",
     srcs = ["ecdh_commands.c"],
     hdrs = ["ecdh_commands.h"],
+    features = ["-coverage"],
     deps = ["//sw/device/lib/ujson"],
 )
 
 cc_library(
     name = "kmac_commands",
     srcs = ["kmac_commands.c"],
     hdrs = ["kmac_commands.h"],
+    features = ["-coverage"],
     deps = ["//sw/device/lib/ujson"],
 )
 
 cc_library(
     name = "rsa_commands",
     srcs = ["rsa_commands.c"],
     hdrs = ["rsa_commands.h"],
+    features = ["-coverage"],
     deps = ["//sw/device/lib/ujson"],
 )
 
 cc_library(
     name = "sphincsplus_commands",
     srcs = ["sphincsplus_commands.c"],
     hdrs = ["sphincsplus_commands.h"],
+    features = ["-coverage"],
     deps = ["//sw/device/lib/ujson"],
 )