Address missing dependencies or executables

[ Merge of http://go/wvgerrit/195850 ]

Since Widevine device builds now include APEX prebuilts,
shared library dependencies for the prebuilts are in
are in /apex/com.google.android.widevine/lib[64] rather
than /system/lib[64] or /vendor/lib[64]. When tests are
run not all the dependencies are present.

These changes include
* Statically linking missing dependencies
* Adding /apex/com.google.android.widevine/lib[64] to
  the shared library path
* Searching for some of the test executables in
  /data/nativetest[64]/vendor/

Bug: 329888778
Bug: 329891889
Bug: 329891175
Bug: 329891049
Bug: 360160204

Test: ./build_and_run_all_unit_tests.sh
Change-Id: I067685cedc7701c4e6502bdac98b53e22b61ad1e

libwvdrmengine/build_all_unit_tests.sh

@@ -98,7 +98,11 @@ fi
 # If that fails, an error message will be printed.
 try_adb_push() {
   # android-tests.zip requires /data/nativetest, we should use the same
-  if [ -f $OUT/data/nativetest/$1 ]; then
+  if [ -f $OUT/data/nativetest64/$1 ]; then
+    test_file=$OUT/data/nativetest64/$1
+  elif [ -f $OUT/data/nativetest64/vendor/$1/$1 ]; then
+    test_file=$OUT/data/nativetest64/vendor/$1/$1
+  elif [ -f $OUT/data/nativetest/$1 ]; then
     test_file=$OUT/data/nativetest/$1
   elif [ -f $OUT/data/nativetest/vendor/$1/$1 ]; then
     test_file=$OUT/data/nativetest/vendor/$1/$1