slimbus: Fix struct and documentation alignment in stream.c

The placement of the `segdist_codes` array documentation was corrected
to conform with kernel documentation guidelines. The `@segdist_codes`
was placed incorrectly within the struct `segdist_code` documentation
block, which led to a potential misinterpretation of the code structure.

The `segdist_codes` array documentation was moved outside the struct
block, and a separate comment block was provided for it. This change
ensures that clarity and proper alignment with kernel documentation
standards are maintained.

A kernel-doc warning was addressed:
    ./drivers/slimbus/stream.c:49: warning: Excess struct member 'segdist_codes' description in 'segdist_code'
Signed-off-by: Amit Vadhavana <av2082000@gmail.com>
Reviewed-by: Ricardo B. Marliere <ricardo@marliere.net>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20240705080234.424587-2-srinivas.kandagatla@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/slimbus/stream.c

@@ -18,15 +18,17 @@
  *		and the first slot of the next  consecutive Segment.
  * @segdist_code: Segment Distribution Code SD[11:0]
  * @seg_offset_mask: Segment offset mask in SD[11:0]
- * @segdist_codes: List of all possible Segmet Distribution codes.
  */
-static const struct segdist_code {
+struct segdist_code {
 	int ratem;
 	int seg_interval;
 	int segdist_code;
 	u32 seg_offset_mask;
 
-} segdist_codes[] = {
+};
+
+/* segdist_codes - List of all possible Segment Distribution codes. */
+static const struct segdist_code segdist_codes[] = {
 	{1,	1536,	0x200,	 0xdff},
 	{2,	768,	0x100,	 0xcff},
 	{4,	384,	0x080,	 0xc7f},