Add method to update btf_type.size for BTF_KIND_DATASEC

size in btf_type of BTF_KIND_DATASEC is 0 at compilation time.
So bpf loader needs to update to actual size based on ELF's section
size.

Bug: 403381101
Test: boot
Change-Id: I78fb26a5b8eeb120044b5737667f472fac51d79f
1 file changed