RESTRICT AUTOMERGE: Apply security patch to sqlite 3.9.

This patch fixes Magellan SQLite Security Vulnerability as in
b/121156452

Download from https://www.sqlite.org/src/info/4cb67252d39fc537
Get the Tarball or ZIP Archive, unzip it on linux machine then run:
mkdir bld; cd bld; ../configure; make sqlite3.c

Copy sqlite3.c, sqlite3.h, sqlite3ext.h, shell.c from bld directory
to dist/orig.

dist contains a copy of dist/orig, but with the Android.patch
file applied.

Bug: 121156452

Test: select sqlite_version() - returns 3.9.3
Test: cts-tradefed run cts -m CtsDatabaseTestCases -t android.database.sqlite.cts.SQLiteDatabaseTest
Test: cts-tradefed run cts -m CtsDatabaseTestCases -t android.database.sqlite.cts.SQLiteSecurityTest
Change-Id: Iad8c3d1d74d8591a75a4c033c8bf9d3956d2fe4f