How to force Android to use a 24-bit depth buffer in Unity 5, to prevent z fighting?

I've been seeing problems in my game with "z fighting" between terrain and water. It looks perfect on PC, but on my Samsung Galaxy Note 8 Android device, the resolution of the depth buffer is inadequate and z fighting results in the appearance of what look like horizontal ridges at the water line. I was able to ameliorate t$$anonymous$$s problem by increasing the camera's near clip plane from 0.3 to 50.0, but the problem is still there (See image below).

Because it looks great on the PC, but the depth resolution is too coarse on the Android device, it appears that the Android device is using a 16-bit depth buffer rather than the standard 24-bit depth buffer.

Unity used to have a setting in the Android Player Settings, called "Use 24-bit Depth Buffer", to force an Android device to use a 24-bit depth buffer rather than 16-bit. T$$anonymous$$s option was removed in Unity 5. The notes on "What's new in Unity 5" (https://unity3d.com/unity/whats-new/unity-5.0) state "Replaced 16bit depth buffer support with the ability to completely disable depth and stencil buffers." T$$anonymous$$s seems to imply that 16-bit depth buffers are out, and all depth buffers will be 24-bit from now on, but nonetheless the poor depth resolution I'm seeing on Android (whereas the same game looks great on PC) indicates that in Unity 5 it's still using a 16-bit depth buffer on t$$anonymous$$s Android device.

Is there any way in Unity 5 to force an Android device to use a 24-bit depth buffer? Or any other solution to t$$anonymous$$s problem?