Support Qualcomm Kryo 385 CPU variant.

Support Kryo 385 cpu variant which should be used for
Qualcomm Snapdragon 845.

Motivation:
  kryo385 CPU *IS NOT* an Arm Cortex-A75.

Particular problem:
  Cortex-A75 CPU must support optional ARMv8.2 dot product
  feature; kryo385 CPU (Qualcomm Snapdragon 845) doesn't
  support it.

Test: Builds when kryo385 is used as cpu variant.
Test: Pixel 3 boots to GUI with kryo385 as CPU variant
      with this patch on AOSP 9.0.0 r16.

Bug: 119564566

Change-Id: I62ffb46b1977b48446c6c1ca1400b1b39f7a8457