ANDROID: vendor_hooks: Add hooks for util-update related functions

Add vendor hooks for vendors to implement their own load tracker

Through this vendor hooks, vendors can implement their own load tracker
to enhance performance and power consumption.
For example, if the sensitivity of PELT based on cgroup can be controlled,
it will be possible to manage the scheduler for various scenarios.

Bug: 343593793
Change-Id: Icb6b0c408b0c243042a8d481e7bd0249d0d29980
Signed-off-by: Jinho Jeong <jh9317.jeong@samsung.com>
Signed-off-by: lakkyung jung <lakkyung.jung@samsung.com>