Set proper TARGET name for libs

When doing a multi ABI build in one go, if the TARGET is the same,
we'll endup with only one library which is not okay.

Task-number: QTBUG-80351
Change-Id: I0c5ff24480446d671e59dbd5a045f9889dff39e9
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>

mkspecs/features/android/android.prf

@@ -36,6 +36,7 @@ build_pass {
             }
         }
     } else: contains(TEMPLATE, "lib"):!static:!QTDIR_build:android_install {
+        !contains(TARGET, "_$${QT_ARCH}"): TARGET = $${TARGET}_$${QT_ARCH}
         target.path = /libs/$$ANDROID_TARGET_ARCH/
         INSTALLS *= target
     }