firmware: Add NSS EIP firmware package

This is just a helper package that helps ensure
that the EIP-197 firmware is installed by being
used as a dependency on nss-crypto.

Note that the package does not provide or ship
with firmware binaries itself.
Those need to be pulled from the stock firmware.
Binaries required are:
* ifpp.bin
* ipue.bin
* ofpp.bin
* opue.bin

They should be placed inside of the src folder.

Note that we add the src folder to the .gitignore to
prevent accidentally pushing the FW to a public repo.

Signed-off-by: Robert Marko <robimarko@gmail.com>

firmware/nss-eip-firmware/Makefile

@@ -0,0 +1,34 @@
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=nss-eip-firmware
+PKG_VERSION=2.5.7
+PKG_RELEASE:=$(AUTORELEASE)
+
+PKG_MAINTAINER:=Robert Marko <robimarko@gmail.com>
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/nss-eip-firmware
+  SECTION:=firmware
+  CATEGORY:=Firmware
+  TITLE:=NSS EIP-197 firmware
+  DEPENDS:=@(TARGET_ipq807x||TARGET_ipq60xx)
+endef
+
+define Build/Compile
+
+endef
+
+define Package/nss-eip-firmware/install
+	$(INSTALL_DIR) $(1)/lib/firmware/
+	$(INSTALL_DATA) \
+		$(PKG_BUILD_DIR)/ifpp.bin $(1)/lib/firmware/ifpp.bin
+	$(INSTALL_DATA) \
+		$(PKG_BUILD_DIR)/ipue.bin $(1)/lib/firmware/ipue.bin
+	$(INSTALL_DATA) \
+		$(PKG_BUILD_DIR)/ofpp.bin $(1)/lib/firmware/ofpp.bin
+	$(INSTALL_DATA) \
+		$(PKG_BUILD_DIR)/opue.bin $(1)/lib/firmware/opue.bin
+endef
+
+$(eval $(call BuildPackage,nss-eip-firmware))