disable KGDB for bulk builds

mk/build.mk

@@ -48,7 +48,8 @@ DEFCONFIG=		ADK_DEVELSYSTEM=n \
 			BUSYBOX_FEATURE_OSF_LABEL=n \
 			BUSYBOX_FEATURE_SGI_LABEL=n \
 			ADK_KERNEL_RT2X00_DEBUG=n \
-			ADK_KERNEL_ATH5K_DEBUG=n
+			ADK_KERNEL_ATH5K_DEBUG=n \
+			ADK_KERNEL_DEBUG_WITH_KGDB=n
 
 noconfig_targets:=	menuconfig \
 			_config \