r600/sfn: Use the Mesa base style

Acked-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23275>

src/gallium/drivers/r600/sfn/.clang-format

@@ -1,29 +1,15 @@
-BasedOnStyle: LLVM
+
+BasedOnStyle: InheritParentConfig
+
 AlwaysBreakAfterReturnType: TopLevel
 AllowShortEnumsOnASingleLine: false
 BinPackParameters: false
 BinPackArguments: false
-BraceWrapping:
-  AfterControlStatement: false
-  AfterEnum: false
-  AfterFunction: true
-  AfterStruct: false
-  BeforeElse: false
-  SplitEmptyFunction: true
-BreakBeforeBraces: Custom
+
 ColumnLimit: 90
-ContinuationIndentWidth: 3
-Cpp11BracedListStyle: true
-ForEachMacros:
-  - LIST_FOR_EACH_ENTRY
-  - LIST_FOR_EACH_ENTRY_SAFE
+
 IncludeBlocks: Regroup
-IndentWidth: 3
 TabWidth: 3
-PenaltyBreakBeforeFirstCallParameter: 1
-PenaltyExcessCharacter: 100
-SpaceAfterCStyleCast: false
-SpaceBeforeCpp11BracedList: false
 AlignArrayOfStructures: Left
 ReferenceAlignment: Left
 PenaltyBreakOpenParenthesis: 90
@@ -34,4 +20,3 @@ PackConstructorInitializers: Never
 IndentAccessModifiers: false
 AccessModifierOffset: -3
 BreakConstructorInitializers: AfterColon
-SpaceBeforeCtorInitializerColon: False