Claude review: drm/amd/display: clean up reversed type specifiers in dml2_core

[Claude Code Review Bot <claude-review@example.com>]

Patch Review

**Changes in `dml2_core_dcn4.c`:**

The two viewport height casts are fixed:
```c
-	phantom->composition.viewport.plane0.height = (long int unsigned) math_min2(...)
+	phantom->composition.viewport.plane0.height = (unsigned long) math_min2(...)
```
And the local variable declaration:
```c
-	int unsigned odm_count, num_odm_output_segments, dpp_count;
+	unsigned int odm_count, num_odm_output_segments, dpp_count;
```
Both correct. The `height` field is `unsigned long` per `dml_top_display_cfg_types.h:223`, so the cast target type matches.

**Changes in `dml2_core_utils.c`:**

Return type and local variable fix:
```c
-int unsigned dml2_core_utils_get_gfx_version(enum dml2_swizzle_mode sw_mode)
+unsigned int dml2_core_utils_get_gfx_version(enum dml2_swizzle_mode sw_mode)
 {
-	int unsigned version = 0;
+	unsigned int version = 0;
```
Correct.

Parameter type fix with line-length reformatting:
```c
-unsigned int dml2_core_util_get_num_active_pipes(int unsigned num_planes, const struct core_display_cfg_support_info *cfg_support_info)
+unsigned int
+dml2_core_util_get_num_active_pipes(unsigned int num_planes,
+				    const struct core_display_cfg_support_info *cfg_support_info)
```
Correct, and the reformatting is welcome since the old line was well over 80 columns.

Same viewport height cast fixes as in `dml2_core_dcn4.c` — this is a duplicate `create_phantom_plane_from_main_plane` function (one static copy per file). Both fixed consistently.

**Changes in `dml2_core_utils.h`:**

Declarations updated to match the `.c` changes for both `dml2_core_util_get_num_active_pipes` and `dml2_core_utils_get_gfx_version`. Consistent with the source.

**Minor observation:** The two separate static copies of `create_phantom_plane_from_main_plane` in `dml2_core_dcn4.c` and `dml2_core_utils.c` are a pre-existing code duplication issue, not introduced by this patch.

**Reviewed-by worthy:** Yes. No issues.

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Generated by Claude Code Patch Reviewer