Make the connection between implementation and llndk_library explicit

Instead of assuming a module with the .llndk suffix exists, add an
llndk_stubs property to every cc_library module that has a
corresponding llndk_library.  Also rename the llndk_library to have
an explicit .llndk suffix.

Bug: 170784825
Test: no changes to build.ninja (excluding comments) or Android-${TARGET_PRODUCT}.mk
Change-Id: Ic4fa093f126490394909867a08448ed886bc5955
diff --git a/opengl/libs/Android.bp b/opengl/libs/Android.bp
index e8d3684..e7c2e94 100644
--- a/opengl/libs/Android.bp
+++ b/opengl/libs/Android.bp
@@ -133,6 +133,7 @@
 cc_library_shared {
     name: "libEGL",
     defaults: ["egl_libs_defaults"],
+    llndk_stubs: "libEGL.llndk",
     srcs: [
         "EGL/egl_tls.cpp",
         "EGL/egl_cache.cpp",
@@ -198,6 +199,7 @@
 cc_library_shared {
     name: "libGLESv1_CM",
     defaults: ["gles_libs_defaults"],
+    llndk_stubs: "libGLESv1_CM.llndk",
     srcs: ["GLES_CM/gl.cpp"],
     cflags: ["-DLOG_TAG=\"libGLESv1\""],
     version_script: "libGLESv1_CM.map.txt",
@@ -209,6 +211,7 @@
 cc_library_shared {
     name: "libGLESv2",
     defaults: ["gles_libs_defaults"],
+    llndk_stubs: "libGLESv2.llndk",
     srcs: ["GLES2/gl2.cpp"],
     cflags: ["-DLOG_TAG=\"libGLESv2\""],
 
@@ -223,6 +226,7 @@
 cc_library_shared {
     name: "libGLESv3",
     defaults: ["gles_libs_defaults"],
+    llndk_stubs: "libGLESv3.llndk",
     srcs: ["GLES2/gl2.cpp"],
     cflags: ["-DLOG_TAG=\"libGLESv3\""],
 }