(FACT-3160) Update test to account for tota physical partition size

Author: joshcooper

spec/facter/resolvers/aix/disks_spec.rb

@@ -28,7 +28,7 @@
     let(:result) { load_fixture('lspv_output').read }
 
     let(:disks) do
-      { 'hdisk0' => { size: '30.00 GiB', size_bytes: 32_212_254_720 } }
+      { 'hdisk0' => { size: '29.97 GiB', size_bytes: 32_178_700_288 } }
     end
 
     before do