Disable CONFIG_AUDIT

Saves us about 36k of zImage.epapr:

-rwxr-xr-x 1 stewart users 14046310 Aug 18 16:28 zImage.epapr
-rwxr-xr-x 1 stewart users 14009446 Aug 18 16:34 zImage.epapr

Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
diff --git a/openpower/configs/linux/skiroot_defconfig b/openpower/configs/linux/skiroot_defconfig
index 6ca2e6b..779bc01 100644
--- a/openpower/configs/linux/skiroot_defconfig
+++ b/openpower/configs/linux/skiroot_defconfig
@@ -9,8 +9,8 @@
 # CONFIG_SWAP is not set
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
-CONFIG_AUDIT=y
-CONFIG_AUDITSYSCALL=y
+CONFIG_AUDIT=n
+CONFIG_AUDITSYSCALL=n
 CONFIG_IRQ_DOMAIN_DEBUG=y
 CONFIG_NO_HZ=y
 CONFIG_HIGH_RES_TIMERS=y