add beta-kernel switch, wont always have the latest kernel but useful for testing

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>

mk_mmc.sh

@@ -110,11 +110,13 @@ fi
 function set_defaults {
 
  if [ "$BETA_KERNEL" ];then
-  KERNEL_REL=2.6.37.1
+  KERNEL_REL=2.6.38-rc6
-  KERNEL_PATCH=2
+  KERNEL_PATCH=3
+  KERNEL=${KERNEL_REL}-d${KERNEL_PATCH}
  else
   KERNEL_REL=2.6.37.1
   KERNEL_PATCH=2
+  KERNEL=${KERNEL_REL}-x${KERNEL_PATCH}
  fi
 
  if [ "$USB_ROOTFS" ];then
@@ -175,8 +177,6 @@ esac
  MLO=${MLO##*/}
  UBOOT=${UBOOT##*/}
 
-KERNEL=${KERNEL_REL}-x${KERNEL_PATCH}
-
 case "$DIST" in
     maverick)
 	TEST_MD5SUM=$MAVERICK_MD5SUM