configs: sandbox: enable LOG_SYSLOG

For testing purposes enable the syslog logging driver.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/sandbox_defconfig b/configs/sandbox_defconfig
index cc90f00..a43b48d 100644
--- a/configs/sandbox_defconfig
+++ b/configs/sandbox_defconfig
@@ -19,6 +19,7 @@
 CONFIG_SILENT_CONSOLE=y
 CONFIG_PRE_CONSOLE_BUFFER=y
 CONFIG_LOG_MAX_LEVEL=6
+CONFIG_LOG_SYSLOG=y
 CONFIG_LOG_ERROR_RETURN=y
 CONFIG_DISPLAY_BOARDINFO_LATE=y
 CONFIG_ANDROID_AB=y