ARM: at91: add AT91_SAM9_TIME entry to select at91sam926x_time.c compilation

No more associate at91sam926x_time.c compilation with SOC_AT91SAM9 entry since
SAMA5D3 devices will use this driver too.
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>

arch/arm/mach-at91/Kconfig

@@ -14,8 +14,12 @@ config AT91_SAM9G45_RESET
 	bool
 	default !ARCH_AT91X40
 
+config AT91_SAM9_TIME
+	bool
+
 config SOC_AT91SAM9
 	bool
+	select AT91_SAM9_TIME
 	select CPU_ARM926T
 	select GENERIC_CLOCKEVENTS
 	select MULTI_IRQ_HANDLER

arch/arm/mach-at91/Makefile

@@ -10,7 +10,8 @@ obj-		:=
 obj-$(CONFIG_AT91_PMC_UNIT)	+= clock.o
 obj-$(CONFIG_AT91_SAM9_ALT_RESET) += at91sam9_alt_reset.o
 obj-$(CONFIG_AT91_SAM9G45_RESET) += at91sam9g45_reset.o
-obj-$(CONFIG_SOC_AT91SAM9)	+= at91sam926x_time.o sam9_smc.o
+obj-$(CONFIG_AT91_SAM9_TIME)	+= at91sam926x_time.o
+obj-$(CONFIG_SOC_AT91SAM9)	+= sam9_smc.o
 
 # CPU-specific support
 obj-$(CONFIG_SOC_AT91RM9200)	+= at91rm9200.o at91rm9200_time.o