ANDROID: GKI: Enable CONFIG_MIN_HEAP

Introduce the kernel library min_heap.
The vendor module uses min_heap library to store
predicted timestamp of tasks, and determines whether
to power off the system for power saving based on the
smallest timestamp.

Bug: 416656285
Change-Id: I1d5892a54cf143b91feefe51473d9e434b550df5
Signed-off-by: haohsiang.hsu <haohsiang.hsu@mediatek.corp-partner.google.com>