spmi: pmic-arb: Always allocate ppid_to_apid table

Allocate the ppid_to_apid table regardless of the version of
pmic arbiter we have. Otherwise, we will try to defer the array
when we don't allocate it on v2 hardware like the msm8974 SoCs.

Change-Id: Ie3738e05952138eadc5ad62a8fb703048d308e16
Signed-off-by: Kiran Gunda <kgunda@codeaurora.org>