timer: Sort Makefile entries

Makefile entries should be sorted.

Signed-off-by: Mario Six <mario.six@gdsys.cc>

drivers/timer/Makefile

@@ -3,17 +3,17 @@
 # Copyright (C) 2015 Thomas Chou <thomas@wytron.com.tw>
 
 obj-y += timer-uclass.o
+obj-$(CONFIG_AG101P_TIMER) += ag101p_timer.o
 obj-$(CONFIG_ALTERA_TIMER)	+= altera_timer.o
+obj-$(CONFIG_ARC_TIMER)	+= arc_timer.o
+obj-$(CONFIG_AST_TIMER)	+= ast_timer.o
+obj-$(CONFIG_ATCPIT100_TIMER) += atcpit100_timer.o
+obj-$(CONFIG_ATMEL_PIT_TIMER) += atmel_pit_timer.o
 obj-$(CONFIG_CADENCE_TTC_TIMER)	+= cadence-ttc.o
 obj-$(CONFIG_DESIGNWARE_APB_TIMER)	+= dw-apb-timer.o
-obj-$(CONFIG_SANDBOX_TIMER)	+= sandbox_timer.o
-obj-$(CONFIG_X86_TSC_TIMER)	+= tsc_timer.o
 obj-$(CONFIG_OMAP_TIMER)	+= omap-timer.o
-obj-$(CONFIG_AST_TIMER)	+= ast_timer.o
-obj-$(CONFIG_STI_TIMER)		+= sti-timer.o
-obj-$(CONFIG_ARC_TIMER)	+= arc_timer.o
-obj-$(CONFIG_AG101P_TIMER) += ag101p_timer.o
-obj-$(CONFIG_ATCPIT100_TIMER) += atcpit100_timer.o
 obj-$(CONFIG_ROCKCHIP_TIMER) += rockchip_timer.o
-obj-$(CONFIG_ATMEL_PIT_TIMER) += atmel_pit_timer.o
+obj-$(CONFIG_SANDBOX_TIMER)	+= sandbox_timer.o
+obj-$(CONFIG_STI_TIMER)		+= sti-timer.o
 obj-$(CONFIG_STM32_TIMER)	+= stm32_timer.o
+obj-$(CONFIG_X86_TSC_TIMER)	+= tsc_timer.o