libhwc2.1: replace std::find_if with for loops am: 83e8e5b3ca am: 9e89fbf69d am: 60bc5c7b60 am: 818382e6ed

Original change: https://android-review.googlesource.com/c/platform/hardware/google/graphics/common/+/2768191

Change-Id: Ibeca1aefd58b1436bab1bf725b15080f4b1907cc
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>