Reland "Add libdl_android as a bootstrap library".

Necessary after moving it into the Runtime APEX, as several framework
libraries loaded during early boot depends on it, e.g. libvndksupport.so,
libvulkan.so, and libgraphicsenv.so.

Test: build & boot
Bug: 135753770
Bug: 144343305
Change-Id: Ia95349e377605d709fae74d966bd4f2324eaf604
diff --git a/target/product/base_system.mk b/target/product/base_system.mk
index dab3787..9cb7ad1 100644
--- a/target/product/base_system.mk
+++ b/target/product/base_system.mk
@@ -125,6 +125,7 @@
     libcamera2ndk \
     libcutils \
     libdl.bootstrap \
+    libdl_android.bootstrap \
     libdrmframework \
     libdrmframework_jni \
     libEGL \