radv: add a size check in radv_create_buffer for Android

radv: add a size check in radv_create_buffer for Android

This is to make dEQP-VK.api.buffer.basic.size_max_uint64 pass on
android.

The test creates a buffer of size UINT64_MAX and makes sure the memory
requirement for the buffer is sane.  It fails because our memory
requirement is "align64(UINT64_MAX, 16)" which is 0 after overflow.

The test checks maintenance4's maxBufferSize and is skipped normally.
But the extension can be disabled on an android build.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21346>