Fix ScanResult array parceling.

readParcelableArray() wasn't working as expected so I just parceled
the array myself.

Test: adb shell am instrument -e class android.net.RecommendationRequestTest  -w com.android.frameworks.coretests/android.support.test.runner.AndroidJUnitRunner
Change-Id: I83939d17769930b707b8bc579542c74a05e31d19
Merged-In: I47bc31adbedea817feaa5953cb6ee48506f9c6d6