Only add deps on java_binary's jni_libs on host

The jni_libs property of java_binary is documented to only install
the jni libraries on host. However, it was adding installable
deptag deps on those libraries, even if they were for device. This
caused soong to emit installation rules for the jni libraries, causing
them to be installed to the staging directory, but not emitting
proper information to make, so they wouldn't be included on the built
partitions.

Only install them if the module is built for host, so that they don't
erroneously appear in the staging directory.

Bug: 344695913
Test: Presubmits
Change-Id: Ic40b4fc6d7dbd51c03b08e28037be5428db49c33
diff --git a/java/java.go b/java/java.go
index 258ebba..46344c8 100644
--- a/java/java.go
+++ b/java/java.go
@@ -1864,10 +1864,12 @@
 	if ctx.Arch().ArchType == android.Common {
 		j.deps(ctx)
 	}
-	if ctx.Arch().ArchType != android.Common {
-		// These dependencies ensure the host installation rules will install the jar file and
-		// the jni libraries when the wrapper is installed.
+	// These dependencies ensure the installation rules will install the jar file when the
+	// wrapper is installed, and the jni libraries on host when the wrapper is installed.
+	if ctx.Arch().ArchType != android.Common && ctx.Os().Class == android.Host {
 		ctx.AddVariationDependencies(nil, jniInstallTag, j.binaryProperties.Jni_libs...)
+	}
+	if ctx.Arch().ArchType != android.Common {
 		ctx.AddVariationDependencies(
 			[]blueprint.Variation{{Mutator: "arch", Variation: android.CommonArch.String()}},
 			binaryInstallTag, ctx.ModuleName())