Fixing build_log_simplifier/gc.sh to include androidx_multiplatform
Fixing build_log_simplifier/gc.sh to include androidx_multiplatform

Now it matches all top-level .sh files other than androidx-studio-integration

Previously it was matching all scripts that mentioned impl/build.sh , but androidx_multiplatform is now implemented to call androidx.sh

Bug: 167723349

Change-Id: I708cd1f20259dfd21f974a03092895fb3689974d

androidx/androidx,androidx/androidx,AndroidX/androidx,AndroidX/androidx,androidx/androidx,AndroidX/androidx,AndroidX/androidx,AndroidX/androidx,AndroidX/androidx,androidx/androidx,AndroidX/androidx,androidx/androidx,AndroidX/androidx,androidx/androidx,AndroidX/androidx,androidx/androidx,androidx/androidx,androidx/androidx,androidx/androidx,AndroidX/androidx