Use uname instead of proc/version

- Update the displayed kernel version to use uname instead

Change-Id: Iced2540f775c03c273521c8965c2f331267982b2
Fixes: 67006899
Test: Manual with settings app

src/com/android/settings/deviceinfo/KernelVersionPreferenceController.java

@@ -39,7 +39,7 @@ public class KernelVersionPreferenceController extends AbstractPreferenceControl
     @Override
     public void updateState(Preference preference) {
         super.updateState(preference);
-        preference.setSummary(DeviceInfoUtils.getFormattedKernelVersion());
+        preference.setSummary(DeviceInfoUtils.getFormattedKernelVersion(mContext));
     }
 
     @Override

src/com/android/settings/deviceinfo/firmwareversion/KernelVersionDialogController.java

@@ -36,6 +36,7 @@ public class KernelVersionDialogController {
      * Updates kernel version to the dialog.
      */
     public void initialize() {
-        mDialog.setText(KERNEL_VERSION_VALUE_ID, DeviceInfoUtils.getFormattedKernelVersion());
+        mDialog.setText(KERNEL_VERSION_VALUE_ID,
+                DeviceInfoUtils.getFormattedKernelVersion(mDialog.getContext()));
     }
 }