Refactor driver loading code

The scenarios we need to support become complicated. It's time for us to
reorganize the code and make it clearer.

* Use a bitmap and a vector to manage all known devices.
* Extract driver/device selection logic into functions.
* Merge multiple feature detection functions into a single
  is_feature_support function.
* Remove redundant drv_init function. We don't need to separate create
  and initialization of device driver now, and the separation itself
  could cause resource management issue.
* Introduce new function to select driver.

Tracked-On: OAM-126702
Signed-off-by: Weifeng Liu <weifeng.liu@intel.com>

Android.bp

@@ -49,6 +49,7 @@ filegroup {
         "virtgpu.c",
         "virtgpu_cross_domain.c",
         "virtgpu_virgl.c",
+        "intel_device.c",
     ],
 }