ASoC: meson: Constify static snd_pcm_hardware

Static 'struct snd_pcm_hardware' is not modified by the driver and its
copy is passed to the core, so it can be made const for increased code
safety.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240429-n-asoc-const-snd-pcm-hardware-v1-3-c6ce60989834@linaro.orgSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/meson/aiu-fifo-i2s.c

@@ -25,7 +25,7 @@
 
 #define AIU_FIFO_I2S_BLOCK		256
 
-static struct snd_pcm_hardware fifo_i2s_pcm = {
+static const struct snd_pcm_hardware fifo_i2s_pcm = {
 	.info = (SNDRV_PCM_INFO_INTERLEAVED |
 		 SNDRV_PCM_INFO_MMAP |
 		 SNDRV_PCM_INFO_MMAP_VALID |

sound/soc/meson/aiu-fifo-spdif.c

@@ -27,7 +27,7 @@
 
 #define AIU_FIFO_SPDIF_BLOCK			8
 
-static struct snd_pcm_hardware fifo_spdif_pcm = {
+static const struct snd_pcm_hardware fifo_spdif_pcm = {
 	.info = (SNDRV_PCM_INFO_INTERLEAVED |
 		 SNDRV_PCM_INFO_MMAP |
 		 SNDRV_PCM_INFO_MMAP_VALID |

sound/soc/meson/aiu-fifo.h

@@ -18,7 +18,7 @@ struct snd_pcm_hw_params;
 struct platform_device;
 
 struct aiu_fifo {
-	struct snd_pcm_hardware *pcm;
+	const struct snd_pcm_hardware *pcm;
 	unsigned int mem_offset;
 	unsigned int fifo_block;
 	struct clk *pclk;

sound/soc/meson/axg-fifo.c

@@ -23,7 +23,7 @@
  * These differences are handled in the respective DAI drivers
  */
 
-static struct snd_pcm_hardware axg_fifo_hw = {
+static const struct snd_pcm_hardware axg_fifo_hw = {
 	.info = (SNDRV_PCM_INFO_INTERLEAVED |
 		 SNDRV_PCM_INFO_MMAP |
 		 SNDRV_PCM_INFO_MMAP_VALID |