liblog: add stubs variant

Ensure that only the symbols in liblog.map.txt can be used by the
platform.

Bug: 123349183
Test: build
Change-Id: I99ae5d0e8ba8f5061ec20701c941d861c9eb615d
diff --git a/rootdir/etc/ld.config.legacy.txt b/rootdir/etc/ld.config.legacy.txt
index 2d44bb6..fa0a01a 100644
--- a/rootdir/etc/ld.config.legacy.txt
+++ b/rootdir/etc/ld.config.legacy.txt
@@ -114,6 +114,7 @@
 namespace.conscrypt.link.default.shared_libs  = libc.so
 namespace.conscrypt.link.default.shared_libs += libm.so
 namespace.conscrypt.link.default.shared_libs += libdl.so
+namespace.conscrypt.link.default.shared_libs += liblog.so
 
 ###############################################################################
 # "resolv" APEX namespace
@@ -130,6 +131,7 @@
 namespace.resolv.link.default.shared_libs += libm.so
 namespace.resolv.link.default.shared_libs += libdl.so
 namespace.resolv.link.default.shared_libs += libbinder_ndk.so
+namespace.resolv.link.default.shared_libs += liblog.so
 namespace.resolv.link.default.shared_libs += libvndksupport.so
 
 ###############################################################################