Update filter to allowlist instead of whitelist

Remove racist terminology in favor of descriptive terminology.

Tested: builds and runs with no change in behavior.

Change-Id: Ic7ab6f4b316043da67f079cd92cd6f070ddcf108
Signed-off-by: Vernon Mauery <vernon.mauery@linux.intel.com>
diff --git a/.gitignore b/.gitignore
index ea7b437..0662a7b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -19,5 +19,5 @@
 phosphor-ipmi-host-src/
 prefix/
 runSensorTests
-ipmi-whitelist.hpp
+ipmi-allowlist.hpp
 check-code-coverage*