radv: Add clang-format for AMD code.

Copied from https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8883
with increased colum width as 80 really made a mess.

Acked-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10091>

src/amd/.clang-format

@@ -0,0 +1,96 @@
+AlignAfterOpenBracket: true
+AlignConsecutiveMacros: true
+AllowAllArgumentsOnNextLine: false
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: false
+AlwaysBreakAfterReturnType: TopLevelDefinitions
+BasedOnStyle: LLVM
+BraceWrapping:
+  AfterControlStatement: false
+  AfterEnum: false
+  AfterFunction: true
+  AfterStruct: false
+  BeforeElse: false
+  SplitEmptyFunction: true
+BinPackArguments: true
+BinPackParameters: true
+BreakBeforeBraces: Custom
+ColumnLimit: 100
+ContinuationIndentWidth: 3
+Cpp11BracedListStyle: false
+Cpp11BracedListStyle: true
+ForEachMacros:
+  - LIST_FOR_EACH_ENTRY
+  - LIST_FOR_EACH_ENTRY_SAFE
+  - foreach_list_typed
+  - util_dynarray_foreach
+  - nir_foreach_variable
+  - nir_foreach_variable_safe
+  - nir_foreach_register
+  - nir_foreach_register_safe
+  - nir_foreach_use
+  - nir_foreach_use_safe
+  - nir_foreach_if_use
+  - nir_foreach_if_use_safe
+  - nir_foreach_def
+  - nir_foreach_def_safe
+  - nir_foreach_phi_src
+  - nir_foreach_phi_src_safe
+  - nir_foreach_parallel_copy_entry
+  - nir_foreach_instr
+  - nir_foreach_instr_reverse
+  - nir_foreach_instr_safe
+  - nir_foreach_instr_reverse_safe
+  - nir_foreach_function
+  - nir_foreach_block
+  - nir_foreach_block_safe
+  - nir_foreach_block_reverse
+  - nir_foreach_block_reverse_safe
+  - nir_foreach_block_in_cf_node
+  - nir_foreach_shader_in_variable
+  - nir_foreach_shader_out_variable_safe
+  - nir_foreach_variable_in_list
+  - nir_foreach_src
+  - foreach_two_lists
+  - foreach_bit
+  - foreach_sched_node
+  - foreach_src
+  - foreach_src_n
+  - foreach_ssa_use
+  - foreach_ssa_srcp_n
+  - foreach_ssa_srcp
+  - foreach_ssa_src_n
+  - foreach_ssa_src
+  - foreach_input_n
+  - foreach_input
+  - foreach_output_n
+  - foreach_output
+  - foreach_instr
+  - foreach_instr_rev
+  - foreach_instr_safe
+  - foreach_block
+  - foreach_block_safe
+  - foreach_block_rev
+  - foreach_array
+  - foreach_array_safe
+  - foreach_name_n
+  - foreach_name
+  - foreach_def
+  - foreach_use
+  - set_foreach
+
+IncludeBlocks: Preserve
+IncludeCategories:
+  - Regex:           '<[[:alnum:].]+>'
+    Priority:        1
+  - Regex:           '.*\/.*'
+    Priority:        2
+  - Regex:           '.*'
+    Priority:        3
+IndentWidth: 3
+PenaltyBreakBeforeFirstCallParameter: 1
+PenaltyExcessCharacter: 100
+SpaceAfterCStyleCast: false
+SpaceBeforeCpp11BracedList: false
+SpaceBeforeCtorInitializerColon: false
+SpacesInContainerLiterals: false