Relocate Cortex-M timer driver

Moves the Cortex-M timer driver so that it resides with the other timer
drivers.

Change-Id: I3324c53356efd9f5fd88752a98e4ae301ea38d47
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>

arch/arm/Makefile

@@ -1,6 +1,5 @@
 obj-y = core/
 obj-y += bsp/
-obj-y += timer/
 
 obj-$(CONFIG_BSP_FSL_FRDM_K64F) += fsl_frdm_k64f/
 obj-$(CONFIG_BSP_TI_LM3S6965) += ti_lm3s6965/

arch/arm/timer/Makefile

@@ -1,5 +0,0 @@
-ccflags-y +=-I$(srctree)/include/drivers
-ccflags-y +=-I$(srctree)/arch/$(ARCH)/$(strip $(CONFIG_PLATFORM))
-
-obj-y = cortex_m_timer.o
-obj-$(CONFIG_GDB_INFO) += cortex_m_timer_gdb.o

drivers/timer/Makefile

@@ -5,3 +5,7 @@ obj-$(CONFIG_PIT) = i8253.o
 obj-$(CONFIG_HPET_TIMER) += hpet.o
 obj-$(CONFIG_LOAPIC_TIMER) += loapic_timer.o
 obj-$(CONFIG_ARCV2_TIMER) += arcv2_timer0.o
+
+_CORTEX_M_TIMER_AND_GDB_INFO_yy = y
+obj-$(CONFIG_CORTEX_M_TIMER) += cortex_m_timer.o
+obj-$(_CORTEX_M_TIMER_AND_GDB_INFO_$(CONFIG_CORTEX_M_TIMER)$(CONFIG_GDB_INFO)) += cortex_m_timer_gdb.o