sim:tests: Fix shodan_boot robot typo

Change-Id: Icf5f3ecd5082e84cab44fe4cb4dff2f1f4dcf8cc

shodan_boot.robot

diff --git a/shodan_boot.robot b/shodan_boot.robot
index 6f2bc90..751072c 100644
--- a/shodan_boot.robot
+++ b/shodan_boot.robot
@@ -38,11 +38,11 @@
     IF      ${RUN_DEBUG} == 1
       Execute Command             $tar=@${FLASH_DEBUG_TAR}
       Execute Command             $cpio=@${CPIO_DEBUG}
-      Execute Command             $kernel=@{CANTRIP_KERNEL_DEBUG}
+      Execute Command             $kernel=@${CANTRIP_KERNEL_DEBUG}
     ELSE
       Execute Command             $tar=@${FLASH_RELEASE_TAR}
       Execute Command             $cpio=@${CPIO_RELEASE}
-      Execute Command             $kernel=@{CANTRIP_KERNEL_RELEASE}
+      Execute Command             $kernel=@${CANTRIP_KERNEL_RELEASE}
     END
     Execute Script              ${SCRIPT}
     # Add UART5 virtual time so we can check the machine execution time