ASoC: SOF: amd: acp-loader: Use GFP_KERNEL for DMA allocations in resume context

Replace GFP_ATOMIC with GFP_KERNEL for dma_alloc_coherent() calls. This
change improves memory allocation reliability during firmware loading,
particularly during system resume when memory pressure is high. Because
of using GFP_KERNEL, reclaim can happen which can reduce the probability
of failure.

Fixes memory allocation failures observed during system resume with
fragmented memory conditions.

snd_sof_amd_vangogh 0000:04:00.5: error: failed to load DSP firmware after resume -12

Fixes: 145d7e5ae8f4e ("ASoC: SOF: amd: add option to use sram for data bin loading")
Fixes: 7e51a9e38ab20 ("ASoC: SOF: amd: Add fw loader and renoir dsp ops to load firmware")
Cc: [e-mail]
Signed-off-by: Muhammad Usama Anjum <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

sound/soc/sof/amd/acp-loader.c

···
 			dma_size = page_count * ACP_PAGE_SIZE;
 			adata->bin_buf = dma_alloc_coherent(&pci->dev, dma_size,
 							    &adata->sha_dma_addr,
-							    GFP_ATOMIC);
+							    GFP_KERNEL);
 			if (!adata->bin_buf)
 				return -ENOMEM;
 		}
···
 			adata->data_buf = dma_alloc_coherent(&pci->dev,
 							     ACP_DEFAULT_DRAM_LENGTH,
 							     &adata->dma_addr,
-							     GFP_ATOMIC);
+							     GFP_KERNEL);
 			if (!adata->data_buf)
 				return -ENOMEM;
 		}
···
 			adata->sram_data_buf = dma_alloc_coherent(&pci->dev,
 								  ACP_DEFAULT_SRAM_LENGTH,
 								  &adata->sram_dma_addr,
-								  GFP_ATOMIC);
+								  GFP_KERNEL);
 			if (!adata->sram_data_buf)
 				return -ENOMEM;
 		}