qcacmn: Fix issue in extraction API for peer and vdev extd stats

wmi_stats_event structure is defined in FW header wmi_unified.h with
variable length data as A_UINT8 data[0]. KW tool perceives this
as a single uint8 and throws zero sized array when we try to access buffer
following data.

A uint8 pointer is assigned to data for this purpose in order to fake
the tool and resolve the issue.

Change-Id: I998f80c84554bc5bf4d0b2df1dae85352d72cb21
CRs-Fixed: 1106787
1 file changed