Install current VNDK libs to the versioned directories.

If PLATFORM_VNDK_VERSION has a version $VER other than "current",
install current VNDK libs to /system/lib[64]/vndk[-sp]-$VER.
Otherwise, they will be installed to /system/lib[64]/vndk[-sp].

Bug: 69883025
Test: device boot
Change-Id: Ifa8564f39687dab5b407bf2178b13022625a94f3

android/config.go

@@ -648,6 +648,10 @@ func (c *deviceConfig) VndkVersion() string {
 	return String(c.config.ProductVariables.DeviceVndkVersion)
 }
 
+func (c *deviceConfig) PlatformVndkVersion() string {
+	return String(c.config.ProductVariables.Platform_vndk_version)
+}
+
 func (c *deviceConfig) ExtraVndkVersions() []string {
 	return c.config.ProductVariables.ExtraVndkVersions
 }