clang-format: use options for C++20 requires

clang-15 adds options to format C++20 Concepts `requires`
statements.  Set them now so we have consistency in any code
which starts to use C++20 Concepts.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: If75f8ebdf46855423a4ffb1dba598e9c61d9a462
diff --git a/style/cpp/.clang-format b/style/cpp/.clang-format
index c1337a8..5f0cb09 100644
--- a/style/cpp/.clang-format
+++ b/style/cpp/.clang-format
@@ -75,6 +75,7 @@
   - Regex:           '.*'
     Priority:        6
 IndentCaseLabels: true
+IndentRequiresClause: true
 IndentWidth:     4
 IndentWrappedFunctionNames: true
 KeepEmptyLinesAtTheStartOfBlocks: false
@@ -96,6 +97,7 @@
 QualifierAlignment: Left
 ReferenceAlignment: Left
 ReflowComments:  true
+RequiresClausePosition: OwnLine
 SortIncludes:    true
 SortUsingDeclarations: true
 SpaceAfterCStyleCast: false