Camera: Import gralloc buffers before metadata queries

Raw buffer handles do not support metadata queries and need
to be imported first.
Additionally map the result buffer ids to the inflight
buffers and queue the maximum amount of inflight buffers
as advertised by Hal. Since we will be streaming a set
of buffers, use an appropriate preview size.

Bug: 237576060
Test: adb shell
/data/nativetest64/VtsAidlHalCameraProvider_TargetTest/VtsAidlHalCameraProvider_TargetTest
--gtest_filter=PerInstance/CameraAidlTest.process10BitDynamicRangeRequest/0_android_hardware_camera_provider_ICameraProvider_internal_0

Change-Id: Id854c2a8d1588a151240d1b32197dbace7e1a057