Adjust booleans in misc modules. (#5160)

plugins/modules/remote_management/ipmi/ipmi_boot.py

@@ -77,14 +77,14 @@ options:
       - If set, ask that system firmware uses this device beyond next boot.
         Be aware many systems do not honor this.
     type: bool
-    default: 'no'
+    default: false
   uefiboot:
     description:
       - If set, request UEFI boot explicitly.
         Strictly speaking, the spec suggests that if not set, the system should BIOS boot and offers no "don't care" option.
         In practice, this flag not being set does not preclude UEFI boot on any system I've encountered.
     type: bool
-    default: 'no'
+    default: false
 requirements:
   - "python >= 2.6"
   - pyghmi