eCSR_AUTH_TYPE_RSN_8021X_SHA256 is defined only when 11W feature
is enabled. The code is using the identifier
eCSR_AUTH_TYPE_RSN_8021X_SHA256 without conditional compilation.
Access eCSR_AUTH_TYPE_RSN_8021X_SHA256 under 11W feature flag.
Change-Id: I5e1e513c12cf526045991749a487ac89d1773659
CRs-Fixed: 947938