[yaml2obj] - Program headers: add an additional check for `Offset`

[yaml2obj] - Program headers: add an additional check for `Offset`

The `Offset` field is used to set the file offset of a program header.
In a normal object it should not be greater than the minimal offset
of sections included into segment.

This patch adds a check for that and adds tests.

Differential revision: https://reviews.llvm.org/D78304