Use android-base/stringprintf.h instead of base/string/stringprintf.h am: 4f02976254 am: 228029c939

Original change: https://android-review.googlesource.com/c/platform/system/update_engine/+/3298451

Change-Id: I8ed41b381ad75a638b377f79056c2f17f10333e5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>