multiple/raspberry-pi: fix clkdevs for raspberry pi
Commit 7e497d4 introduced a name change which
breaks support for the fixed clkdev for uart and sdhci for RPI.
Use clkdev_add_physbase instead to be independant from the device tree names.
Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>