clang-format: Enable AlignConsecutiveMacros

clang-format-10 has been adopted in CI, so enable some of the more
useful recent features.

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Change-Id: I9293bacb049b97c0a9abdf7188ea2eea66e43092
diff --git a/.clang-format b/.clang-format
index e35b54e..38daa66 100644
--- a/.clang-format
+++ b/.clang-format
@@ -4,7 +4,7 @@
 ---
 AccessModifierOffset: -4
 AlignAfterOpenBracket: Align
-# AlignConsecutiveMacros: true # Unknown to clang-format-8
+AlignConsecutiveMacros: true
 AlignConsecutiveAssignments: false
 AlignConsecutiveDeclarations: false
 #AlignEscapedNewlines: Left # Unknown to clang-format-4.0