Revert "Use the global default cpp_std."

This reverts commit 5e38942eb28653da4e7987eb94ddcc23aed35aa8.

Reason for revert: Droidmonitor created revert due to b/346410836.

Change-Id: I4ca7520e0cc6b0fb6474a66393b3b359c6946866
diff --git a/camera/ndk/Android.bp b/camera/ndk/Android.bp
index 921aab2..d4dd546 100644
--- a/camera/ndk/Android.bp
+++ b/camera/ndk/Android.bp
@@ -111,6 +111,7 @@
 
 cc_library_shared {
     name: "libcamera2ndk_vendor",
+    cpp_std: "gnu++17",
     vendor: true,
     srcs: [
         "ndk_vendor/impl/ACameraDevice.cpp",