arm: defconfig: update ranchu defconfig

enable neon to fix chrome crash
enable goldfish_audio
change smsc91x to smsc911x to match emulator
remove stale configs with make savedefconfig

Bug: 28774461

Change-Id: I24ea75875e5ad73eaa93649e1fde936e3ab7174e
Signed-off-by: Bo Hu <bohu@google.com>
diff --git a/arch/arm/configs/ranchu_defconfig b/arch/arm/configs/ranchu_defconfig
index 886465e..4c482e0 100644
--- a/arch/arm/configs/ranchu_defconfig
+++ b/arch/arm/configs/ranchu_defconfig
@@ -22,6 +22,7 @@
 CONFIG_EMBEDDED=y
 CONFIG_PROFILING=y
 CONFIG_OPROFILE=y
+CONFIG_ARCH_MMAP_RND_BITS=16
 # CONFIG_BLK_DEV_BSG is not set
 # CONFIG_IOSCHED_DEADLINE is not set
 # CONFIG_IOSCHED_CFQ is not set
@@ -37,6 +38,7 @@
 CONFIG_HIGHMEM=y
 CONFIG_CMDLINE="console=ttyAMA0"
 CONFIG_VFP=y
+CONFIG_NEON=y
 # CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
 CONFIG_PM_AUTOSLEEP=y
 CONFIG_PM_WAKELOCKS=y
@@ -157,6 +159,7 @@
 CONFIG_NETDEVICES=y
 CONFIG_TUN=y
 CONFIG_VIRTIO_NET=y
+CONFIG_SMSC911X=y
 CONFIG_PPP=y
 CONFIG_PPP_BSDCOMP=y
 CONFIG_PPP_DEFLATE=y
@@ -203,6 +206,7 @@
 CONFIG_SW_SYNC=y
 CONFIG_SW_SYNC_USER=y
 CONFIG_ION=y
+CONFIG_GOLDFISH_AUDIO=y
 CONFIG_GOLDFISH=y
 CONFIG_GOLDFISH_PIPE=y
 CONFIG_EXT4_FS=y