drivers: base: arch_topology: swap the order of updating shared_cap_level

Update the shared_cap_level from DIE level to THREAD level. If a higher
level has shared_cap_level set, we also consider lower level sharing
capacity state.

Change-Id: I96bd0a80d2af7937311f131e6f46cca3a82af7b0
Signed-off-by: Runmin Wang <runminw@codeaurora.org>