utils/gnupg: Add build of gpgv

gpgv is a stripped down gnupg useful for only verifying signatures.
Having this package can save space when all you need is signature
verification.

Signed-off-by: Daniel Dickinson <lede@cshore.thecshore.com>

utils/gnupg/Makefile

@@ -38,6 +38,11 @@ define Package/gnupg
   MENU:=1
 endef
 
+define Package/gpgv
+  $(call Package/gnupg/Default)
+  TITLE:=GnuPG signature verification only
+endef
+
 define Package/gnupg-utils
   $(call Package/gnupg/Default)
   DEPENDS:=gnupg +libcurl
@@ -54,6 +59,13 @@ define Package/gnupg/description
  with PGP2 because it uses IDEA (which is patented worldwide).
 endef
 
+define Package/gpgv/description
+ GPGv is a stripped down version of GnuPG that only checks signatures.
+ .
+ GnuPG does not use any patented algorithms so it cannot be compatible
+ with PGP2 because it uses IDEA (which is patented worldwide).
+endef
+
 define Package/gnupg-utils/description
  Key management utilies for GnuPG.
  This package is needed to import keys from a keyserver.
@@ -79,6 +91,11 @@ define Package/gnupg/install
 	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/gpg $(1)/usr/bin/
 endef
 
+define Package/gpgv/install
+	$(INSTALL_DIR) $(1)/usr/bin
+	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/gpgv $(1)/usr/bin/
+endef
+
 define Package/gnupg-utils/install
 	$(INSTALL_DIR) $(1)/usr/lib/gnupg
 	for file in gpgkeys_curl gpgkeys_hkp; do \
@@ -88,4 +105,5 @@ define Package/gnupg-utils/install
 endef
 
 $(eval $(call BuildPackage,gnupg))
+$(eval $(call BuildPackage,gpgv))
 $(eval $(call BuildPackage,gnupg-utils))