sandbox: enable LTO by default

Build sandbox targets with LTO by default.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

diff --git a/arch/Kconfig b/arch/Kconfig
index c5c03d438ceb3b6934e816c6b56f2e13cfc44a63..8fd39e36b452beff899369a42b3d127e803f9251 100644 (file)
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -125,6 +125,7 @@ config SANDBOX
        select SUPPORT_EXTENSION_SCAN
        imply BITREVERSE
        select BLOBLIST
+       imply LTO
        imply CMD_DM
        imply CMD_EXCEPTION
        imply CMD_GETTIME