Replace resource.txt with resource.robot

Change-Id: I4d2afd35645880e33a31644cd717bbeae55666f0
Signed-off-by: Sandhya Somashekar <sansomas@in.ibm.com>
diff --git a/systest/test_boot_acceptance.robot b/systest/test_boot_acceptance.robot
index 8210bd8..15e96a7 100644
--- a/systest/test_boot_acceptance.robot
+++ b/systest/test_boot_acceptance.robot
@@ -40,7 +40,7 @@
 Library         SSHLibrary
 Library         String
 Library         ../lib/bmc_ssh_utils.py
-Resource        ../lib/resource.txt
+Resource        ../lib/resource.robot
 Resource        ../syslib/utils_os.robot
 Resource        ../lib/bmc_network_utils.robot