Export the `host_required` property to module-info

Some test modules such as `android_test` use the `host_required` attribute to include additional harness dependencies. For example, `CtsLibcoreTestCases` references `cts-dalvik-host-test-runner` in the `host_required` attribute since those jars are required by Tradefed at runtime.

This information needs to present in module_info.json and exported to properly generate Bazel targets that include these runtime dependencies.

Test: m out/target/product/coral/module-info.json
Bug: 220991354
Change-Id: I8d2ab0da04c9f4aff17d290999c69ffe0534729f
diff --git a/core/tasks/module-info.mk b/core/tasks/module-info.mk
index 8097535..4ef6eb8 100644
--- a/core/tasks/module-info.mk
+++ b/core/tasks/module-info.mk
@@ -28,6 +28,7 @@
 			'"runtime_dependencies": [$(foreach w,$(sort $(ALL_MODULES.$(m).LOCAL_RUNTIME_LIBRARIES)),"$(w)", )], ' \
 			'"data_dependencies": [$(foreach w,$(sort $(ALL_MODULES.$(m).TEST_DATA_BINS)),"$(w)", )], ' \
 			'"supported_variants": [$(foreach w,$(sort $(ALL_MODULES.$(m).SUPPORTED_VARIANTS)),"$(w)", )], ' \
+			'"host_dependencies": [$(foreach w,$(sort $(ALL_MODULES.$(m).HOST_REQUIRED_FROM_TARGET)),"$(w)", )], ' \
 			'},\n' \
 	 ) | sed -e 's/, *\]/]/g' -e 's/, *\}/ }/g' -e '$$s/,$$//' >> $@
 	$(hide) echo '}' >> $@