treewide: use name in define and eval lines

For consistency, use full name instead of $(PKG_NAME) in define and eval
lines for all packages.

I've seen reviews that asked to do this before, and I am asking the same
during reviews now. To avoid this in the future, fix this treewide so
when people use existing packages as example, we will not have to
request this change anymore.

This makes all packages consistent with both LEDE and OpenWrt base
repositories.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>

utils/mc/Makefile

@@ -32,7 +32,7 @@ PKG_CONFIG_DEPENDS := \
 include $(INCLUDE_DIR)/package.mk
 include $(INCLUDE_DIR)/nls.mk
 
-define Package/$(PKG_NAME)
+define Package/mc
 	SECTION:=utils
 	CATEGORY:=Utilities
 	DEPENDS:=+glib2 +libncurses +libmount +MC_VFS:libssh2 $(LIBRPC_DEPENDS) $(ICONV_DEPENDS)
@@ -41,11 +41,11 @@ define Package/$(PKG_NAME)
 	MENU:=1
 endef
 
-define Package/$(PKG_NAME)/config
+define Package/mc/config
 	source "$(SOURCE)/Config.in"
 endef
 
-define Package/$(PKG_NAME)/description
+define Package/mc/description
 GNU Midnight Commander is a visual file manager.
 It's a feature rich full-screen text mode application that allows you to copy,
 move and delete files and whole directory trees, search for files and run commands in the subshell.
@@ -98,7 +98,7 @@ CONFIGURE_ARGS += \
 	--disable-vfs
 endif
 
-define Package/$(PKG_NAME)/install
+define Package/mc/install
 	$(INSTALL_DIR) $(1)/usr/bin
 	$(INSTALL_BIN) $(PKG_BUILD_DIR)/src/mc $(1)/usr/bin
 	$(INSTALL_DIR) $(1)/etc/mc
@@ -119,9 +119,9 @@ endif
 	$(INSTALL_DIR) $(1)/etc/mc/mcedit/Syntax
 endef
 
-define Package/$(PKG_NAME)/conffiles
+define Package/mc/conffiles
 /etc/mc/mc.menu
 /etc/mc/skins/default.ini
 endef
 
-$(eval $(call BuildPackage,$(PKG_NAME)))
+$(eval $(call BuildPackage,mc))