Enable Windows build for libimage_io

This is working towards supporting a Windows build of
libandroid_runtime.

Bug: 340885449
Test: build libimage_io for Windows
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:7573f022c418654e7a1aa710842c59ce9cf884ec)
Merged-In: Ia59f669eb04349b8e1667940b890540a1639357b
Change-Id: Ia59f669eb04349b8e1667940b890540a1639357b
1 file changed