dcwifi: Add Dual Channel Wi-Fi component packages

dcstad: Dual Channel Wi-Fi Station Daemon
dcwapd: Dual Channel Wi-Fi Access Point Daemon
libdcwproto: Dual Channel Wi-Fi Protocol Library
libdcwsocket: Dual Channel Wi-Fi Socket Library
macremapper: MAC Address Remapper Linux Kernel Module
mrmctl: Userland tool to get/set remap rules

Signed-off-by: Carey Sonsino <careys@edgewaterwireless.com>
Signed-off-by: Carey Sonsino <csonsino@gmail.com>

Much help from @neheb

net/dcwifi/dcstad/Makefile

@@ -0,0 +1,49 @@
+#
+# Copyright (C) 2019 EWSI
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=dcstad
+PKG_VERSION:=1.0.0
+PKG_RELEASE:=1
+
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL:=https://codeload.github.com/ewsi/$(PKG_NAME)/tar.gz/v$(PKG_VERSION)?
+PKG_HASH:=3b146ea22bc5480d8264c5ea269831d25993673aa90a9e82dc2dc601a111da55
+
+PKG_MAINTAINER:=Carey Sonsino <careys@edgewaterwireless.com>
+PKG_LICENSE:=Apache-2.0
+PKG_LICENSE_FILES:=COPYING
+
+PKG_FIXUP:=autoreconf
+PKG_INSTALL:=1
+PKG_BUILD_PARALLEL:=1
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/dcstad
+  SECTION:=net
+  CATEGORY:=Network
+  SUBMENU:=Routing and Redirection
+  TITLE:=Dual-Channel WiFi client daemon
+  URL:=https://www.edgewaterwireless.com
+  DEPENDS:=+libdcwsocket +libdcwproto
+endef
+
+define Package/dcstad/description
+Implementation of the Dual-Channel WiFi client daemon
+endef
+
+TARGET_CFLAGS += -ffunction-sections -fdata-sections -flto
+TARGET_LDFLAGS += -Wl,--gc-sections
+
+define Package/dcstad/install
+	$(INSTALL_DIR) $(1)/bin
+	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/dcstad $(1)/bin/
+endef
+
+$(eval $(call BuildPackage,dcstad))

net/dcwifi/dcstad/patches/01_replace_bzero.patch

@@ -0,0 +1,11 @@
+--- a/src/main.c
++++ b/src/main.c
+@@ -190,7 +190,7 @@ main( int argc, char *argv[] ) {
+   rv = 1; /* failure unless proven otherwise */
+ 
+   /* first initialize and parse the command line */
+-  bzero(&cfg, sizeof(cfg));
++  memset(&cfg, 0, sizeof(cfg));
+   parse_cmdline(&cfg, argc, argv);
+ 
+   dcwloginfof("%s\n", "DCW Station Daemon Starting Up...");