fix: Added dell to mib_dir for windows / linux (#6726)

includes/definitions/linux.yaml

@@ -6,6 +6,7 @@ ifXmcbc: 1
 ifname: 1
 mib_dir:
     - supermicro
+    - dell
 over:
     - { graph: device_processor, text: 'Processor Usage' }
     - { graph: device_ucd_memory, text: 'Memory Usage' }

includes/definitions/windows.yaml

@@ -4,6 +4,8 @@ text: 'Microsoft Windows'
 ifname: 1
 processor_stacked: 1
 bad_hrSystemUptime: true
+mib_dir:
+    - dell
 discovery:
     - sysObjectId: .1.3.6.1.4.1.311.1.1.3
     - sysDescr: Windows