armv8: fsl: Enable USB only when SYSCLK is 100 MHz

SYSCLK is used as a reference clock for USB. When the USB controller
is used, SYSCLK must meet the additional requirement of 100 MHz.

Signed-off-by: Sriram Dash <sriram.dash@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
1 file changed