Mark the modules as VNDK-SP in Android.bp

As a VNDK-SP module, Android.bp must have 'vndk' tag as well as
'vendor_available: true'.

The 'vndk' tag for VNDK-SP formated as follows:
vndk: {
    enabled: true,
    support_system_process: true,
},

VNDK-SP modules will be installed both in system/lib(64) as normal
and in system/lib(64)/vndk-sp as a vendor variant.

Bug: 63866913
Test: build and boot with BOARD_VNDK_VERSION=current
Change-Id: I51fe0859f63ad58b7b91909e7d7d4206443228cd

base/Android.bp

@@ -41,6 +41,10 @@ cc_library {
     vendor_available: true,
     clang: true,
     host_supported: true,
+    vndk: {
+        enabled: true,
+        support_system_process: true,
+    },
     srcs: [
         "file.cpp",
         "logging.cpp",

libbacktrace/Android.bp

@@ -64,6 +64,10 @@ cc_library_headers {
 cc_library {
     name: "libbacktrace",
     vendor_available: true,
+    vndk: {
+        enabled: true,
+        support_system_process: true,
+    },
     defaults: ["libbacktrace_common"],
     host_supported: true,
 

libcutils/Android.bp

@@ -50,6 +50,10 @@ cc_library_headers {
 cc_library {
     name: "libcutils",
     vendor_available: true,
+    vndk: {
+        enabled: true,
+        support_system_process: true,
+    },
     host_supported: true,
     srcs: [
         "config_utils.c",

libion/Android.bp

@@ -1,7 +1,11 @@
 
 cc_library {
     name: "libion",
-		vendor_available: true,
+    vendor_available: true,
+    vndk: {
+        enabled: true,
+        support_system_process: true,
+    },
     srcs: ["ion.c"],
     shared_libs: ["liblog"],
     local_include_dirs: [

libutils/Android.bp

@@ -46,6 +46,10 @@ cc_library_headers {
 cc_library {
     name: "libutils",
     vendor_available: true,
+    vndk: {
+        enabled: true,
+        support_system_process: true,
+    },
     host_supported: true,
 
     srcs: [