Prep for 4.12-rc1: Change versions from -unstable to -rc

Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>

README

@@ -1,9 +1,9 @@
 #################################
- _  _    _ ____                       _        _     _
+ _  _    _ ____
-| || |  / |___ \      _   _ _ __  ___| |_ __ _| |__ | | ___
+| || |  / |___ \      _ __ ___
-| || |_ | | __) |____| | | | '_ \/ __| __/ _` | '_ \| |/ _ \
+| || |_ | | __) |____| '__/ __|
-|__   _|| |/ __/_____| |_| | | | \__ \ || (_| | |_) | |  __/
+|__   _|| |/ __/_____| | | (__
-   |_|(_)_|_____|     \__,_|_| |_|___/\__\__,_|_.__/|_|\___|
+   |_|(_)_|_____|    |_|  \___|
 
 #################################
 

SUPPORT.md

@@ -9,7 +9,7 @@ for the definitions of the support status levels etc.
 
 # Release Support
 
-    Xen-Version: 4.12-unstable
+    Xen-Version: 4.12-rc
     Initial-Release: n/a
     Supported-Until: TBD
     Security-Support-Until: Unreleased - not yet security-supported

xen/Makefile

@@ -2,7 +2,7 @@
 # All other places this is stored (eg. compile.h) should be autogenerated.
 export XEN_VERSION       = 4
 export XEN_SUBVERSION    = 12
-export XEN_EXTRAVERSION ?= -unstable$(XEN_VENDORVERSION)
+export XEN_EXTRAVERSION ?= .0-rc$(XEN_VENDORVERSION)
 export XEN_FULLVERSION   = $(XEN_VERSION).$(XEN_SUBVERSION)$(XEN_EXTRAVERSION)
 -include xen-version