linux: add 3.1 checksum

SVN-Revision: 28553

include/kernel-version.mk

@@ -32,6 +32,9 @@ endif
 ifeq ($(LINUX_VERSION),3.0.3)
   LINUX_KERNEL_MD5SUM:=6a8af5f6733b3db970197e65b3db712c
 endif
+ifeq ($(LINUX_VERSION),3.1)
+  LINUX_KERNEL_MD5SUM:=8d43453f8159b2332ad410b19d86a931
+endif
 
 # disable the md5sum check for unknown kernel versions
 LINUX_KERNEL_MD5SUM?=x