wlan: Enable diag version of driver

Enable the compile flag to compile in the diag events & log pkts
on wlan host driver

Change-Id: I21ca565bbced8b02ba804b2ef016a63f823344b6
CRs-fixed: 482978
diff --git a/Kbuild b/Kbuild
index 3dcc5cc..1167e20 100644
--- a/Kbuild
+++ b/Kbuild
@@ -48,7 +48,7 @@
 BUILD_DEBUG_VERSION := 1
 
 #Enable this flag to build driver in diag version
-BUILD_DIAG_VERSION := 0
+BUILD_DIAG_VERSION := 1
 
 #Do we panic on bug?  default is to warn
 PANIC_ON_BUG := 1