Revert "docs(changelog): changelog for v2.10 release"

This reverts commit 0abbfab320344d4f2110e95d64863a3e82a51ec9.

Reason for revert: Changelog was based on rc0 tag but we got few more patches after that which were not captured.

Change-Id: I9829f2b6dc09f0bd5c538845cbae051f6e4c8a75
diff --git a/Makefile b/Makefile
index 97c3c15..5edd385 100644
--- a/Makefile
+++ b/Makefile
@@ -8,7 +8,7 @@
 # Trusted Firmware Version
 #
 VERSION_MAJOR			:= 2
-VERSION_MINOR			:= 10
+VERSION_MINOR			:= 9
 VERSION_PATCH			:= 0	# Only used for LTS releases
 VERSION				:= ${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}