[cov,otbn] Add coverage_view for boot binary

This change adds a `coverage_view_test` target to the OTBN crypto BUILD
file for the `boot` binary. This allows for coverage
filtering of the boot code.

Change-Id: I4605a87677f1f198cadd34dbb5f65df5ed4332e8
Signed-off-by: Yi-Hsuan Deng <[email protected]>

Author: sasdf

sw/otbn/crypto/BUILD

@@ -3,6 +3,7 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load("//rules:otbn.bzl", "otbn_binary", "otbn_library")
+load("//rules/coverage:view.bzl", "coverage_view_test")
 
 package(default_visibility = ["//visibility:public"])
 
@@ -19,6 +20,12 @@ otbn_binary(
     ],
 )
 
+coverage_view_test(
+    name = "boot_coverage_view",
+    elf = ":boot",
+    kind = "otbn",
+)
+
 otbn_library(
     name = "ed25519",
     srcs = [