qcacld-3.0: Fix LIM message posting API definition and usage

Currently lim_post_msg_api() and lim_post_msg_high_priority() are
defined to return a uint32_t status.  This is an artifact of many
generations of driver changes. These functions now return QDF_STATUS,
so update the signatures as well as all callers to properly expect
this return type. In addition remove the legacy wrapper function
pe_post_msg_api() since it is unused.

Change-Id: I00f991d64e3542336526e7ed2ca36e4112918cb7
CRs-Fixed: 2271548
5 files changed