Fix NPE in CarDisplayCompatScaleProviderUpdatableImpl This CL fixes a NullPointerException that can occur in CarDisplayCompatScaleProviderUpdatableImpl.getCompatScale() when the compatScale parameter is null. The fix is to add a null check before creating the CompatScaleWrapper object. If the compatScale parameter is null, the method will return null. Bug: 376313474 Flag: EXEMPT bugfix Cherrypick-From: https://googleplex-android-review.googlesource.com/q/commit:ce50e253dbf3c33b74c86e84a23efdeeef7a8d44 Merged-In: Ie579b89525595764126136bf049116d5ac0df6d1 Change-Id: Ie579b89525595764126136bf049116d5ac0df6d1