Add NDK support for CPU/GPU headroom APIs

Bug: 346604998
Flag: EXEMPT ndk
Test: atest NativeSystemHealthTest
Change-Id: I5fd4bee8711f60f948010d96019cc0e200713e06
diff --git a/native/android/Android.bp b/native/android/Android.bp
index cd6de5a..129d616 100644
--- a/native/android/Android.bp
+++ b/native/android/Android.bp
@@ -73,6 +73,7 @@
         "surface_control.cpp",
         "surface_texture.cpp",
         "system_fonts.cpp",
+        "system_health.cpp",
         "trace.cpp",
         "thermal.cpp",
     ],