dmaengine: dw: Update Intel Elkhart Lake Service Engine acronym

Intel Elkhart Lake Offload Service Engine (OSE) will be called as
Intel(R) Programmable Services Engine (Intel(R) PSE) in documentation.

Update the comment here accordingly.
Signed-off-by: NJarkko Nikula <jarkko.nikula@linux.intel.com>
Acked-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: NViresh Kumar <viresh.kumar@linaro.org>
Link: https://lore.kernel.org/r/20190813080602.15376-1-jarkko.nikula@linux.intel.comSigned-off-by: NVinod Koul <vkoul@kernel.org>

drivers/dma/dw/pci.c

@@ -143,7 +143,7 @@ static const struct pci_device_id dw_pci_id_table[] = {
 	{ PCI_VDEVICE(INTEL, 0x2286), (kernel_ulong_t)&dw_pci_data },
 	{ PCI_VDEVICE(INTEL, 0x22c0), (kernel_ulong_t)&dw_pci_data },
 
-	/* Elkhart Lake iDMA 32-bit (OSE DMA) */
+	/* Elkhart Lake iDMA 32-bit (PSE DMA) */
 	{ PCI_VDEVICE(INTEL, 0x4bb4), (kernel_ulong_t)&idma32_pci_data },
 	{ PCI_VDEVICE(INTEL, 0x4bb5), (kernel_ulong_t)&idma32_pci_data },
 	{ PCI_VDEVICE(INTEL, 0x4bb6), (kernel_ulong_t)&idma32_pci_data },