libebml: upgrade 1.4.5 -> 1.4.7

Upstream changes (ChangeLog):
 * 1.4.6: mark EbmlHead as not-infinite per RFC 8794; fix leak on upper
   element found inside the last element; EbmlString::ReadFully and
   EbmlUnicodeString use std::string / automatic memory management;
   IOCallback avoids reading more than 2^32 at once; fix includes not
   implicit in modern compilers; download utfcpp automatically; add a
   DEV_MODE CMake option and a build-configuration summary.
 * 1.4.7: fix cmake rules for building with utf8cpp 4.x (upstream #344).

libebml now uses utf8cpp (utfcpp) for Unicode string handling rather
than a bundled copy: CMakeLists does find_package(utf8cpp) and otherwise
FetchContent-downloads it. Add DEPENDS = "utfcpp" (OE-core provides
utfcpp 4.1.1) so the system copy is used and the offline build resolves
utf8cpp::utf8cpp.

Drop 0001-allow-build-with-cmake-4.patch: it backported the
cmake_minimum_required(VERSION 3.5) bump that is now in 1.4.7 upstream.

Update the LICENSE.LGPL checksum for an upstream reformatting of the
license file (content still LGPL-2.1-only).

Signed-off-by: Khem Raj <khem.raj@oss.qualcomm.com>

meta-multimedia/recipes-mkv/libebml/libebml/0001-allow-build-with-cmake-4.patch

@@ -1,40 +0,0 @@
-From b54451a2cc63672284c7768ecf5562214826ea50 Mon Sep 17 00:00:00 2001
-From: Alper Ak <alperyasinak1@gmail.com>
-Date: Tue, 8 Jul 2025 17:15:08 +0300
-Subject: [PATCH] cmake: Set minimum required version to 3.5 for CMake 4+
- compatibility
-
-Fix:
-
-| CMake Error at CMakeLists.txt:1 (cmake_minimum_required):
-|   Compatibility with CMake < 3.5 has been removed from CMake.
-|
-|   Update the VERSION argument <min> value.  Or, use the <min>...<max> syntax
-|   to tell CMake that the project requires at least <min> but has been updated
-|   to work with policies introduced by <max> or earlier.
-|
-|   Or, add -DCMAKE_POLICY_VERSION_MINIMUM=3.5 to try configuring anyway.
-|
-|
-| -- Configuring incomplete, errors occurred!
-
-Upstream-Status: Backport [https://github.com/Matroska-Org/libebml/commit/cc63f6b3ed2007a3ef04206a26f9ad5a657331bd]
-
-Signed-off-by: Alper Ak <alperyasinak1@gmail.com>
----
- CMakeLists.txt | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/CMakeLists.txt b/CMakeLists.txt
-index b168a38..a8b789f 100644
---- a/CMakeLists.txt
-+++ b/CMakeLists.txt
-@@ -1,4 +1,4 @@
--cmake_minimum_required(VERSION 3.1.2)
-+cmake_minimum_required(VERSION 3.5)
- 
- project(ebml VERSION 1.4.5)
- 
--- 
-2.43.0
-

meta-multimedia/recipes-mkv/libebml/libebml_1.4.7.bb

@@ -1,12 +1,13 @@
 SUMMARY = "C++ library to parse EBML files"
 HOMEPAGE = "https://github.com/Matroska-Org/libebml"
 LICENSE = "LGPL-2.1-only"
-LIC_FILES_CHKSUM = "file://LICENSE.LGPL;md5=4fbd65380cdd255951079008b364516c"
+LIC_FILES_CHKSUM = "file://LICENSE.LGPL;md5=3254c7b4d4712a396bd036bfb211a908"
 
-SRC_URI = "git://github.com/Matroska-Org/libebml.git;branch=v1.x;protocol=https \
-        file://0001-allow-build-with-cmake-4.patch"
+SRC_URI = "git://github.com/Matroska-Org/libebml.git;branch=v1.x;protocol=https"
 
-SRCREV = "1878e784321673561039a6a37076b2736f4dc98f"
+SRCREV = "3e72a85de45cbb385d225a0a60eb3c9114743dd8"
+
+DEPENDS = "utfcpp"
 
 inherit pkgconfig cmake dos2unix