Fix boot regression from KeyStore being slow

Getting the secret hashfunction from KeyStore had increased wifi service
start time by ~20ms.

Moving this to loadFromStore, which happens right after boot complete, should
fix the problem.

Bug: 144579147
Test: atest FrameworksWifiTests
Change-Id: I478f1d558121e56e3d8bdeed4220eb8ba4ef097a
Merged-In: I478f1d558121e56e3d8bdeed4220eb8ba4ef097a
(cherry picked from: 0c6db026e4463abb4030cdf4f7813152f2dd1996)
2 files changed