Add a default constructor to private_handle_t

Fix: 213170715
Test: b/213170715#comment23
Change-Id: I8c1a41d820d90c5f48c729515150dd1b4f11d181
(cherry picked from commit 027e0dd73abec1a02178aee3e458d6b66e13b211)
Merged-In: I8c1a41d820d90c5f48c729515150dd1b4f11d181
1 file changed