qcacmn: Move qdf_status_to/from_os_return()

QDF_STATUS is defined in qdf_status, but related APIs
qdf_status_to_os_return() and qdf_status_from_os_return() are defined
in qdf_util. Create a new file, qdf_status.c, and move these functions
there instead.

Change-Id: Iaa2efa5f662be014a61a8490c3fab411ec0f2054
CRs-Fixed: 2395178
diff --git a/qdf/Kbuild b/qdf/Kbuild
index fd3d1dd..b1468c5 100644
--- a/qdf/Kbuild
+++ b/qdf/Kbuild
@@ -48,6 +48,7 @@
 linux/src/qdf_net_if.o   \
 linux/src/qdf_nbuf.o       \
 linux/src/qdf_perf.o        \
+linux/src/qdf_status.o     \
 linux/src/qdf_threads.o     \
 linux/src/qdf_trace.o \
 linux/src/qdf_vfs.o \