drm/amdgpu: fix build failure by redefinition of p2p_access

This is a typo when cherry-picking code to dkms branch, not checking
the code difference of p2p implementation between upstream and dkms
branch.

Signed-off-by: Guchun Chen <guchun.chen@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_device.c

@@ -5588,9 +5588,9 @@ bool amdgpu_device_is_peer_accessible(struct amdgpu_device *adev,
 		adev->gmc.aper_base + adev->gmc.aper_size - 1;
 
 #ifdef CONFIG_PCI_P2PDMA
-	bool p2p_access = !adev->gmc.xgmi.connected_to_cpu &&
-			  !(pci_p2pdma_distance_many(adev->pdev,
-					&peer_adev->dev, 1, true) < 0);
+	p2p_access = !adev->gmc.xgmi.connected_to_cpu &&
+		     !(pci_p2pdma_distance_many(adev->pdev,
+				&peer_adev->dev, 1, true) < 0);
 #endif
 	return pcie_p2p && p2p_access && (adev->gmc.visible_vram_size &&
 		adev->gmc.real_vram_size == adev->gmc.visible_vram_size &&