ImageWriter: Convert Blob native format to respective public value

The result of the surface format query is the underlying native pixel
format which in some cases might be different from the public advertised
value. The native allocation estimation expects the public ImageFormat
so the queried format must be converted where necessary.

Bug: 170900000
Test: atest
cts/tests/camera/src/android/hardware/camera2/cts/ImageWriter.java#testWriterReaderBlobFormats

Change-Id: If509c112f9caf2f0d00f165200f5a8559896121d