qcacld-3.0: Add CONFIG_MULTI_IF_LOG to support multi if log

This is a propagation of qcacld-2.0 commit 98821c7dcf49d ("qcacld-2.0:
Add CONFIG_MULTI_IF_LOG to support multi if log"). Add CONFIG_MULTI_IF_LOG
to support multi if log by assigning the specific netlink protocol
when dual wlan cards are loaded.

Change-Id: I3ea9574899c23a8d2ebbdea5b958cc3ad7947fe5
CRs-Fixed: 2525483
diff --git a/Kbuild b/Kbuild
index bf4bd92..8755980 100644
--- a/Kbuild
+++ b/Kbuild
@@ -2257,6 +2257,9 @@
 #Set RX_PERFORMANCE
 cppflags-$(CONFIG_RX_PERFORMANCE) += -DRX_PERFORMANCE
 
+#Set MULTI_IF_LOG
+cppflags-$(CONFIG_MULTI_IF_LOG) += -DMULTI_IF_LOG
+
 #Set SLUB_MEM_OPTIMIZE
 cppflags-$(CONFIG_SLUB_MEM_OPTIMIZE) += -DSLUB_MEM_OPTIMIZE