ASoC: SOF: amd: Correct spaces in Makefile

A space should be put around "+=" in each line.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20240510073739.23541-1-tiwai@suse.deSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/amd/Makefile

@@ -12,7 +12,7 @@ snd-sof-amd-vangogh-objs := pci-vangogh.o vangogh.o
 snd-sof-amd-acp63-objs := pci-acp63.o acp63.o
 
 obj-$(CONFIG_SND_SOC_SOF_AMD_COMMON) += snd-sof-amd-acp.o
-obj-$(CONFIG_SND_SOC_SOF_AMD_RENOIR) +=snd-sof-amd-renoir.o
-obj-$(CONFIG_SND_SOC_SOF_AMD_REMBRANDT) +=snd-sof-amd-rembrandt.o
-obj-$(CONFIG_SND_SOC_SOF_AMD_VANGOGH) +=snd-sof-amd-vangogh.o
-obj-$(CONFIG_SND_SOC_SOF_AMD_ACP63) +=snd-sof-amd-acp63.o
+obj-$(CONFIG_SND_SOC_SOF_AMD_RENOIR) += snd-sof-amd-renoir.o
+obj-$(CONFIG_SND_SOC_SOF_AMD_REMBRANDT) += snd-sof-amd-rembrandt.o
+obj-$(CONFIG_SND_SOC_SOF_AMD_VANGOGH) += snd-sof-amd-vangogh.o
+obj-$(CONFIG_SND_SOC_SOF_AMD_ACP63) += snd-sof-amd-acp63.o