kirkstone-5.15.71: meta-variscite-sdk: update to latest

Include the following:
varigit/meta-variscite-sdk-imx@a8578bbde2bb variscite: scripts: mx6ul_mx7_install_yocto: add support for WiFi/BT selection
varigit/meta-variscite-sdk-imx@0cdcfa062d27 variscite: scripts: mx6ul_mx7_install_yocto: add support for codec selection
varigit/meta-variscite-sdk-imx@ff423989697e recipes-devtools: python3-pillow: Replace PV in bbappend name with wildcard %
varigit/meta-variscite-sdk-imx@1b5cc277dc28 mx6_install_yocto_emmc.sh: increase eMMC boot partition size

Signed-off-by: Diego Dorta <diego.d@variscite.com>

kirkstone-5.15.71-2.2.0.xml

@@ -34,7 +34,7 @@
   <project remote="yocto"     revision="a7413c5d7568ce91b809ed11f84305b1afb468bb" upstream="kirkstone"   name="meta-virtualization"     path="sources/meta-virtualization"/>
   <project remote="variscite" revision="aee9a7a30d133861b21bdab441d0c91828f6f690" upstream="kirkstone"   name="meta-variscite-hab"      path="sources/meta-variscite-hab"/>
   <project remote="variscite" revision="466fbf49a11641dc91d484454cc7c12873069b01" upstream="kirkstone-var02"   name="meta-variscite-bsp"      path="sources/meta-variscite-bsp"/>
-  <project remote="variscite" revision="fb3499000ebeedf1a81ee05acd4bacc54b90f752" upstream="kirkstone"   name="meta-variscite-sdk"      path="sources/meta-variscite-sdk">
+  <project remote="variscite" revision="a8578bbde2bb5a24a5b2d54300b8c4531df49c72" upstream="kirkstone"   name="meta-variscite-sdk"      path="sources/meta-variscite-sdk">
     <linkfile src="scripts/var-setup-release.sh" dest="var-setup-release.sh"/>
   </project>