sqlite error "unsupported file format" = corruption

sometimes sqlite corruption is so egregious that the sqlite
doesn't even think the file is of supported formatl; ie., the file
header is bad. treat this as corruption.
this check used to be done in sqlite3.c - move it to android code
so that we have less android-changes in sqlite3.c

depends on Change-Id: I334286a1a377b962b1a97dd2af00e194f035090e

Change-Id: Ide8cd1053b1ec00372fbc87caaaaefb408ce9104