drm/xe/guc: Copy response data from proper registers

While copying GuC response from the scratch registers to the buffer,
formula to identify next scratch register is broken. Fix it.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drivers/gpu/drm/xe/xe_guc.c

@@ -703,7 +703,7 @@ proto:
 		response_buf[0] = header;
 
 		for (i = 1; i < VF_SW_FLAG_COUNT; i++) {
-			reply_reg.addr += i * sizeof(u32);
+			reply_reg.addr += sizeof(u32);
 			response_buf[i] = xe_mmio_read32(gt, reply_reg);
 		}
 	}