Updated Palmetto's skip list file with recent issue and fixes

What this fix addresses
   - Added 4 failing TCs in Palmetto's skip list from main skip_list file
   - Added 2 new TCs related to DIMM which are failing due to fw problem.
   - Added 1 test case related to bios
   - Removed 3 test case which are not passing due to fixes for membuf presence detect
   - Added some more test cases which need fixes

Resolves  openbmc/openbmc-test-automation#209

Change-Id: I5f9202e29da3eac80e7072e99b7096675a480d57
Signed-off-by: Rahul Maheshwari <rahulmaheshwari@in.ibm.com>
diff --git a/tests/test_inventory.robot b/tests/test_inventory.robot
index 7542778..fa64ae8 100644
--- a/tests/test_inventory.robot
+++ b/tests/test_inventory.robot
@@ -24,6 +24,8 @@
     Should Be True     ${count}>${0}
 
 minimal dimm inventory
+    [Tags]  minimal_dimm_inventory
+
     ${count} =     Get Total Present     dimm
     Should Be True     ${count}>=${2}
 
@@ -58,6 +60,8 @@
     Verify Properties     CPU
 
 Verify DIMM VPD Properties
+    [Tags]    Verify_DIMM_VPD_Properties
+
     Verify Properties     DIMM
 
 Verify Memory Buffer VPD Properties