ptp_ocp: add force_irq to xilinx_spi configuration

Flashing firmware via devlink flash was failing on PTP OCP devices
because it is using Quad SPI mode, but the driver was not properly
behaving. With force_irq flag landed it now can be fixed.

Signed-off-by: Vadim Fedorenko <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Jakub Kicinski <[e-mail]>

drivers/ptp/ptp_ocp.c

···
 				.num_chipselect = 1,
 				.bits_per_word = 8,
 				.num_devices = 1,
+				.force_irq = true,
 				.devices = &(struct spi_board_info) {
 					.modalias = "spi-nor",
 				},