qemu_v8: Bump TF-A version to v2.3

Update TF-A to latest stable release tag at time of writing, that
is v2.3, for Qemu/Armv8 setup.

Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Reviewed-by: Joakim Bech <joakim.bech@linaro.org>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
diff --git a/qemu_v8.xml b/qemu_v8.xml
index 6bbd653..5738eb8 100644
--- a/qemu_v8.xml
+++ b/qemu_v8.xml
@@ -24,5 +24,5 @@
         <project path="edk2"                 name="tianocore/edk2.git"                    revision="dd4cae4d82c7477273f3da455084844db5cca0c0" />
         <project path="mbedtls"              name="ARMmbed/mbedtls.git"                   revision="refs/tags/mbedtls-2.16.0" clone-depth="1" />
         <project path="qemu"                 name="qemu/qemu.git"                         revision="refs/tags/v5.0.0" clone-depth="1" />
-        <project path="trusted-firmware-a"   name="TF-A/trusted-firmware-a.git"           revision="refs/tags/v2.2" clone-depth="1" remote="tfo" />
+        <project path="trusted-firmware-a"   name="TF-A/trusted-firmware-a.git"           revision="refs/tags/v2.3" clone-depth="1" remote="tfo" />
 </manifest>