Rename cc_object default_shared_libs to system_shared_libs

default_shared_libs has been removed, go back to the system_shared_libs
property that now has the same behavior.

Bug: 193559105
Test: m checkbuild
Change-Id: I9edac93f7e6d9d4b99883b7a7b14ab52942c0ef2
diff --git a/libc/Android.bp b/libc/Android.bp
index c1d6d6b..764173d 100644
--- a/libc/Android.bp
+++ b/libc/Android.bp
@@ -2075,7 +2075,7 @@
 cc_defaults {
     name: "crt_defaults",
     defaults: ["crt_and_memtag_defaults"],
-    default_shared_libs: [],
+    system_shared_libs: [],
 }
 
 cc_defaults {