kernel: make it possible to select experimental 3.18 (3.18-rc2)

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>

SVN-Revision: 43094

include/kernel-version.mk

@@ -7,12 +7,14 @@ LINUX_VERSION-3.8  = .13
 LINUX_VERSION-3.10 = .58
 LINUX_VERSION-3.13 = .7
 LINUX_VERSION-3.14 = .18
+LINUX_VERSION-3.18 = -rc2
 
 LINUX_KERNEL_MD5SUM-3.3.8   = f1058f64eed085deb44f10cee8541d50
 LINUX_KERNEL_MD5SUM-3.8.13  = 2af19d06cd47ec459519159cdd10542d
 LINUX_KERNEL_MD5SUM-3.10.58 = 3ff3478b6351143cef22d4b81cf48b01
 LINUX_KERNEL_MD5SUM-3.13.7  = 370adced5e5c1cb1d0d621c2dae2723f
 LINUX_KERNEL_MD5SUM-3.14.18 = 3b002a06d0964d8101abec768c2d4eef
+LINUX_KERNEL_MD5SUM-3.18-rc2 = 85c45de0ec6f0f9678e4d82549851448
 
 ifdef KERNEL_PATCHVER
   LINUX_VERSION:=$(KERNEL_PATCHVER)$(strip $(LINUX_VERSION-$(KERNEL_PATCHVER)))