of: resolver: Simplify of_resolve_phandles() using __free()

[ Upstream commit 5275e8b5 ]

Use the __free() cleanup to simplify of_resolve_phandles() and remove
all the goto's.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Stable-dep-of: a46a0805 ("of: resolver: Fix device node refcount leakage in of_resolve_phandles()")
Signed-off-by: Sasha Levin <sashal@kernel.org>