Support boringssl hash injection on binaries and make it transitive

Move handling the inject_bssl_hash property to a helper function,
and also treat it as set if any static libraries have it set.

Bug: 137267623
Test: m checkbuild
Change-Id: Icb12cfffb20797c807b410daffbf7fcccb1b1975

cc/binary.go

@@ -50,6 +50,9 @@ type BinaryLinkerProperties struct {
 	// binaries would be installed by default (in PRODUCT_PACKAGES) the other binary will be removed
 	// from PRODUCT_PACKAGES.
 	Overrides []string
+
+	// Inject boringssl hash into the shared library.  This is only intended for use by external/boringssl.
+	Inject_bssl_hash *bool `android:"arch_variant"`
 }
 
 func init() {
@@ -342,6 +345,8 @@ func (binary *binaryDecorator) link(ctx ModuleContext,
 			flagsToBuilderFlags(flags), afterPrefixSymbols)
 	}
 
+	outputFile = maybeInjectBoringSSLHash(ctx, outputFile, binary.Properties.Inject_bssl_hash, fileName)
+
 	if Bool(binary.baseLinker.Properties.Use_version_lib) {
 		if ctx.Host() {
 			versionedOutputFile := outputFile