treewide: cleanup URLs

This commit converts plain HTTP URLs to HTTPS, and updates
old or outdated URLs.

Signed-off-by: Yanase Yuki <dev@zpc.st>

libs/libtheora/Makefile

@@ -11,7 +11,7 @@ PKG_NAME:=libtheora
 PKG_VERSION:=1.2.0
 PKG_RELEASE:=1
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
-PKG_SOURCE_URL:=http://downloads.xiph.org/releases/theora/
+PKG_SOURCE_URL:=https://downloads.xiph.org/releases/theora/
 PKG_HASH:=ebdf77a8f5c0a8f7a9e42323844fa09502b34eb1d1fece7b5f54da41fe2122ec
 
 PKG_LICENSE:=BSD-3-Clause
@@ -29,7 +29,7 @@ define Package/libtheora
   SECTION:=libs
   CATEGORY:=Libraries
   TITLE:=libtheora
-  URL:=http://xiph.org/theora/
+  URL:=https://xiph.org/theora/
   MAINTAINER:=W. Michael Petullo <mike@flyn.org>
   DEPENDS:=+libogg
 endef