Attempt to fix bazel build in same way as pico_flash works with pico_bootrom_headers

Author: will-v-pi

src/BUILD.bazel

@@ -19,6 +19,7 @@ alias(
         "//src/rp2_common/boot_bootrom_headers:__pkg__",
         "//src/rp2_common/hardware_boot_lock:__pkg__",
         "//src/rp2_common/pico_flash:__pkg__",
+        "//src/rp2_common/hardware_rcp:__pkg__",
     ],
 )
 

src/rp2_common/hardware_rcp/BUILD.bazel

@@ -2,6 +2,19 @@ load("//bazel:defs.bzl", "compatible_with_rp2")
 
 package(default_visibility = ["//visibility:public"])
 
+# Picotool needs this (transitively through
+# //src/rp2_common/pico_bootrom:pico_bootrom_headers), so we can't strictly
+# constrain compatibility.
+cc_library(
+    name = "hardware_rcp_headers",
+    hdrs = ["include/hardware/rcp.h"],
+    includes = ["include"],
+    visibility = ["//src/rp2_common/pico_bootrom:__pkg__"],
+    deps = [
+        "//src:pico_platform_internal",
+    ],
+)
+
 cc_library(
     name = "hardware_rcp",
     hdrs = ["include/hardware/rcp.h"],

src/rp2_common/pico_bootrom/BUILD.bazel

@@ -18,6 +18,7 @@ cc_library(
         "//src/rp2_common/boot_bootrom_headers",
         "//src/rp2_common/hardware_boot_lock:hardware_boot_lock_headers",
         "//src/rp2_common/pico_flash:pico_flash_headers",
+        "//src/rp2_common/hardware_rcp:hardware_rcp_headers",
     ] + select({
         "//bazel/constraint:host": ["//src/host/hardware_sync"],
         "//conditions:default": ["//src/rp2_common/hardware_sync"],