powerpc: move ppc64/kernel/signal.c to arch/powerpc

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

arch/powerpc/kernel/Makefile

@@ -13,7 +13,7 @@ endif
 obj-y				:= semaphore.o cputable.o ptrace.o syscalls.o \
 				   signal_32.o pmc.o
 obj-$(CONFIG_PPC64)		+= setup_64.o binfmt_elf32.o sys_ppc32.o \
-				   ptrace32.o systbl.o
+				   signal_64.o ptrace32.o systbl.o
 obj-$(CONFIG_ALTIVEC)		+= vecemu.o vector.o
 obj-$(CONFIG_POWER4)		+= idle_power4.o
 obj-$(CONFIG_PPC_OF)		+= of_device.o

arch/ppc64/kernel/Makefile

@@ -12,7 +12,6 @@ obj-y               :=	misc.o prom.o
 endif
 
 obj-y               +=	irq.o idle.o dma.o \
-			signal.o \
 			align.o pacaData.o \
 			udbg.o ioctl32.o \
 			rtc.o \