ResStringPool: Fix security vulnerability

Adds detection of attacker-modified size and data fields passed to
ResStringPool::setTo(). These attacks are modified apks that AAPT would
not normally generate. In the rare case this occurs, the installation
cannot be allowed to continue.

Bug: 71361168
Bug: 71360999
Test: run cts -m CtsAppSecurityHostTestCases \
          -t android.appsecurity.cts.CorruptApkTests

Change-Id: If7eb93a9e723b16c8a0556fc4e20006aa0391d57
Merged-In: If7eb93a9e723b16c8a0556fc4e20006aa0391d57
(cherry picked from commit 7e54c3f2)
CVE-2018-9338, CVE-2018-9340