add clock related specs to the MPC5125 "tower" board DTS
- add clock providers (crystal/oscillator, clock control module)
- add consumers (the CAN, SDHC, I2C, DIU, FEC, USB, PSC peripherals)
Signed-off-by: NGerhard Sittig <gsi@denx.de>
Signed-off-by: NAnatolij Gustschin <agust@denx.de>