mpc83xx: kmeter1_defconfig add missing BAT4 config

BAT4 setup missed in defconfig, add it.

Signed-off-by: Heiko Schocher <hs@denx.de>
diff --git a/configs/kmeter1_defconfig b/configs/kmeter1_defconfig
index 3812776..4623bd9 100644
--- a/configs/kmeter1_defconfig
+++ b/configs/kmeter1_defconfig
@@ -60,6 +60,12 @@
 CONFIG_BAT3_DCACHE_GUARDED=y
 CONFIG_BAT3_USER_MODE_VALID=y
 CONFIG_BAT3_SUPERVISOR_MODE_VALID=y
+CONFIG_BAT4=y
+CONFIG_BAT4_NAME="STACK_IN_DCACHE"
+CONFIG_BAT4_BASE=0xE6000000
+CONFIG_BAT4_ACCESS_RW=y
+CONFIG_BAT4_USER_MODE_VALID=y
+CONFIG_BAT4_SUPERVISOR_MODE_VALID=y
 CONFIG_BAT5=y
 CONFIG_BAT5_NAME="PAXE"
 CONFIG_BAT5_BASE=0xA0000000