clk: Add APM X-Gene SoC clock driver for reference, PLL, and device clocks.
Signed-off-by: NLoc Ho <lho@apm.com>
Signed-off-by: NKumar Sankaran <ksankaran@apm.com>
Signed-off-by: NVinayak Kale <vkale@apm.com>
Signed-off-by: NFeng Kan <fkan@apm.com>
Signed-off-by: NMike Turquette <mturquette@linaro.org>