ASoC: amd: Make the driver name consistent across files

This fixes the issue of driver not getting auto loaded with
MODULE_ALIAS.
find /sys/devices -name modalias -print0 | xargs -0 grep 'audio'
/sys/devices/pci0000:00/0000:00:01.0/acp_audio_dma.0.auto/modalias:platform:acp_audio_dma

TEST=boot and check for device in lsmod

[Removed yet more ChromeOS crap from the changelog -- broonie]
Signed-off-by: NAkshu Agrawal <akshu.agrawal@amd.com>
Tested-by: NJason Clinton <jclinton@chromium.org>
Reviewed-by: NJason Clinton <jclinton@chromium.org>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

sound/soc/amd/Makefile

-snd-soc-acp-pcm-objs	:= acp-pcm-dma.o
+acp_audio_dma-objs := acp-pcm-dma.o
 snd-soc-acp-rt5645-mach-objs := acp-rt5645.o
 
-obj-$(CONFIG_SND_SOC_AMD_ACP) += snd-soc-acp-pcm.o
+obj-$(CONFIG_SND_SOC_AMD_ACP) += acp_audio_dma.o
 obj-$(CONFIG_SND_SOC_AMD_CZ_RT5645_MACH) += snd-soc-acp-rt5645-mach.o

sound/soc/amd/acp-pcm-dma.c

@@ -40,6 +40,8 @@
 #define ST_MAX_BUFFER (ST_PLAYBACK_MAX_PERIOD_SIZE * PLAYBACK_MAX_NUM_PERIODS)
 #define ST_MIN_BUFFER ST_MAX_BUFFER
 
+#define DRV_NAME "acp_audio_dma"
+
 static const struct snd_pcm_hardware acp_pcm_hardware_playback = {
 	.info = SNDRV_PCM_INFO_INTERLEAVED |
 		SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP |
@@ -1189,7 +1191,7 @@ static struct platform_driver acp_dma_driver = {
 	.probe = acp_audio_probe,
 	.remove = acp_audio_remove,
 	.driver = {
-		.name = "acp_audio_dma",
+		.name = DRV_NAME,
 		.pm = &acp_pm_ops,
 	},
 };
@@ -1200,4 +1202,4 @@ MODULE_AUTHOR("Vijendar.Mukunda@amd.com");
 MODULE_AUTHOR("Maruthi.Bayyavarapu@amd.com");
 MODULE_DESCRIPTION("AMD ACP PCM Driver");
 MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("platform:acp-dma-audio");
+MODULE_ALIAS("platform:"DRV_NAME);