Install symlink to the runtime APEX only for device

Host does not need the symlink. It also broke master-art-host targets.

Test: ALLOW_MISSING_DEPENDENCIES=true
DIST_DIR=~/temp
./art/tools/dist_linux_bionic.sh -j50 showcommands
com.android.runtime.host

Change-Id: Ie8e02553c5a1b6cd5afebd73a64268d2950fc18e

cc/binary.go

@@ -437,7 +437,9 @@ func (binary *binaryDecorator) install(ctx ModuleContext, file android.Path) {
 	// The original path becomes a symlink to the corresponding file in the
 	// runtime APEX.
 	if isBionic(ctx.baseModuleName()) && ctx.Arch().Native && ctx.apexName() == "" && !ctx.inRecovery() {
+		if ctx.Device() {
 			binary.installSymlinkToRuntimeApex(ctx, file)
+		}
 		binary.baseInstaller.subDir = "bootstrap"
 	}
 	binary.baseInstaller.install(ctx, file)

cc/library.go

@@ -920,7 +920,9 @@ func (library *libraryDecorator) install(ctx ModuleContext, file android.Path) {
 			// The original path becomes a symlink to the corresponding file in the
 			// runtime APEX.
 			if isBionic(ctx.baseModuleName()) && !library.buildStubs() && ctx.Arch().Native && !ctx.inRecovery() {
+				if ctx.Device() {
 					library.installSymlinkToRuntimeApex(ctx, file)
+				}
 				library.baseInstaller.subDir = "bootstrap"
 			}
 		}