[qca-nss-clients] Modify qca-nss-clients Makefiles

Added subtarget ipq807x_64 in qca-nss-clients Makefile,
bridge manager, lag manager, and vlan manager Makefiles.

Change-Id: I37d6f8a37a0aa3d8c95fcec9a239801fc127d6d6
Signed-off-by: Yu Huang <yuhuang@codeaurora.org>
diff --git a/lag/Makefile b/lag/Makefile
index 3024e1e..dfc3c2b 100644
--- a/lag/Makefile
+++ b/lag/Makefile
@@ -1,6 +1,6 @@
 # Makefile for the lagmgr client
 
-ifeq ($(SoC), ipq807x)
+ifeq ($(SoC),$(filter $(SoC),ipq807x ipq807x_64))
 ccflags-y += -DNSS_LAG_PPE_SUPPORT
 endif