ac: make ac_shader_abi::inputs an array instead of a pointer

Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12570>

src/gallium/drivers/radeonsi/si_shader_internal.h

@@ -30,8 +30,6 @@
 
 struct pipe_debug_callback;
 
-#define RADEON_LLVM_MAX_INPUTS 32 * 4
-
 /* Ideally pass the sample mask input to the PS epilog as v14, which
  * is its usual location, so that the shader doesn't have to add v_mov.
  */
@@ -60,8 +58,6 @@ struct si_shader_context {
    struct ac_shader_args args;
    struct ac_shader_abi abi;
 
-   LLVMValueRef inputs[RADEON_LLVM_MAX_INPUTS];
-
    LLVMBasicBlockRef merged_wrap_if_entry_block;
    int merged_wrap_if_label;