at-spi2-core: upgrade 2.50.1 -> 2.52.0

Changelog:
===========
* tests: Fix missing declaration for getpid().
* Back out code to generate mouse events on mutter. It had a couple of
  unwanted side effects. Also remove dependencies on libei and xkbcommon.
* atk-adaptor: Fix collection role matching.
* Have atspi_text_get_string_at_offset fall back to calling
  GetTextAtOffset if GetStringAtOffset is unimplemented.
* Don't use g_assert in the unit tests.
* Add an attribute-changed signal in atk, and update libatspi attribute cache.
* Add GetTextSelection and SetTextSelection to Document interface.
* Add atspi_device_generate_mouse_event, and implement for mutter.
* Have atspi_device_add_key_grab return 0 if XIGrabKeycode fails.
* xml: Add Embedded to the Socket interface
* Don't return uninitialized values if atspi_component_get_size/position fail.
* atk-adaptor: Fix critical when no table cell array is returned.
* accessible: Do not rename deprecated methods to the new names.
* Add HelpText property and corresponding functions in atk and libatspi.

(From OE-Core rev: 5d94c1c17b70a6522f780eb4055e343e0d0f863a)

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-support/atk/at-spi2-core_2.52.0.bb

@@ -11,7 +11,7 @@ MAJ_VER = "${@oe.utils.trim_version("${PV}", 2)}"
 
 SRC_URI = "${GNOME_MIRROR}/${BPN}/${MAJ_VER}/${BPN}-${PV}.tar.xz"
 
-SRC_URI[sha256sum] = "5727b5c0687ac57ba8040e79bd6731b714a36b8fcf32190f236b8fb3698789e7"
+SRC_URI[sha256sum] = "0ac3fc8320c8d01fa147c272ba7fa03806389c6b03d3c406d0823e30e35ff5ab"
 
 DEPENDS = " \
 	dbus \