Add android:exported values to all SkQP activities.

This fixes an issue on newer versions of Android where activities
with intent filters need to specify whether or not they are exported
in order to successfully complete installation on a test device.

Bug: b/163792247
Test: successful install on device with AOSP build

Reviewed-on: https://skia-review.googlesource.com/c/skia/+/309980
Reviewed-by: Leon Scroggins <scroggo@google.com>
Reviewed-by: Tyler Denniston <tdenniston@google.com>
Commit-Queue: Derek Sollenberger <djsollen@google.com>
(cherry picked from commit 9f67b06583505b786a5244f5920cb98b3a8a7deb)
Change-Id: I5f7bfe4d1afe8f532ba7d4efdb3f069ac3b6003d
1 file changed