drivers/clocksource: timer-fsl-ftm: use common header for FlexTimer #defines

Common #defines have been moved to "linux/fsl/ftm.h". Thus making use of
this file.
Also FTM_SC_CLK_SHIFT has been renamed to FTM_SC_CLK_MASK_SHIFT.

Reviewed-by: Esben Haabendal <[e-mail]>
Signed-off-by: Patrick Havelange <[e-mail]>
Signed-off-by: William Breathitt Gray <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/clocksource/timer-fsl-ftm.c

···
 #include <linux/of_irq.h>
 #include <linux/sched_clock.h>
 #include <linux/slab.h>
+#include <linux/fsl/ftm.h>
 
-#define FTM_SC		0x00
-#define FTM_SC_CLK_SHIFT	3
-#define FTM_SC_CLK_MASK	(0x3 << FTM_SC_CLK_SHIFT)
-#define FTM_SC_CLK(c)	((c) << FTM_SC_CLK_SHIFT)
-#define FTM_SC_PS_MASK	0x7
-#define FTM_SC_TOIE	BIT(6)
-#define FTM_SC_TOF	BIT(7)
-
-#define FTM_CNT		0x04
-#define FTM_MOD		0x08
-#define FTM_CNTIN	0x4C
-
-#define FTM_PS_MAX	7
+#define FTM_SC_CLK(c)	((c) << FTM_SC_CLK_MASK_SHIFT)
 
 struct ftm_clock_device {
 	void __iomem *clksrc_base;