USB host FatFs throughput

The following test is based on usb_host_msd_fatfs, bm, IAR, release target.

Test device - Sandisk extreme USB3.0 64G SDCZ80 - 64G

Controller

Write speed

RT1050 EHCI

~32163 KB/s

K28FA KHCI

~913 KB/s

LPCXpresso54628 IP3516

~22034 KB/s

LPCXpresso54628 OHCI

~860 KB/s