Fix static analyzer warnings.

Fix the following warning:
frameworks/native/libs/binder/Value.cpp:187:11: warning: Use of memory
after it is freed [clang-analyzer-cplusplus.NewDelete]

Bug: b/27101951
Test:Warnings are gone.
Change-Id: Iebd91d87dd740a39c690c25d690960f7e43d6dbe
1 file changed