arch: rename context.c files to thread.

Also for ARC, rename context_wrapper.S to thread_entry_wrapper.S.

Change-Id: I83318ae352a688996f8436cf3252f6108ec23dc5
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>

arch/arc/core/Makefile

@@ -1,7 +1,7 @@
 ccflags-y += -I$(srctree)/kernel/nanokernel/include
 ccflags-y += -I$(srctree)/kernel/microkernel/include
 
-obj-y += atomic.o context.o context_wrapper.o \
+obj-y += atomic.o thread.o thread_entry_wrapper.o \
 	cpu_idle.o  fast_irq.o  fatal.o  fault.o  \
 	fault_s.o  irq_manage.o  \
 	isr_wrapper.o  regular_irq.o  swap_macros.h  swap.o \

arch/arm/core/Makefile

@@ -6,7 +6,7 @@ asflags-y := ${ccflags-y}
 obj-y = atomic.o exc_exit.o irq_init.o \
 	fiber_abort.o swap.o \
 	fault.o gdb_stub_irq_vector_table.o \
-	irq_manage.o context.o cpu_idle.o \
+	irq_manage.o thread.o cpu_idle.o \
 	fault_s.o gdb_stub.o isr_wrapper.o \
 	fatal.o sys_fatal_error_handler.o
 

arch/x86/core/Makefile

@@ -1,7 +1,7 @@
 ccflags-y += -I$(srctree)/kernel/nanokernel/include
 ccflags-y += -I$(srctree)/kernel/microkernel/include
 
-obj-y = gdt.o context.o fatal.o cpuhalt.o \
+obj-y = gdt.o thread.o fatal.o cpuhalt.o \
 	excstub.o swap.o intboiexit.o msr.o \
 	excconnect.o inthndlset.o sys_fatal_error_handler.o \
 	crt0.o driver_static_irq_stubs.o