powerpc: move lparmap.c to arch/powerpc/kernel

Since lparmap.s gets included in arch/powerpc/kernel/head_64.S,
this avoids depending on a file in another directory.

Signed-off-by: Paul Mackerras <[e-mail]>

arch/powerpc/kernel/Makefile

···
 obj-$(CONFIG_BOOTX_TEXT)	+= btext.o
 
 ifeq ($(CONFIG_PPC_ISERIES),y)
-arch/powerpc/kernel/head_64.o: arch/powerpc/platforms/iseries/lparmap.s
-AFLAGS_head_64.o += -Iarch/powerpc/platforms/iseries
+$(obj)/head_64.o: $(obj)/lparmap.s
+AFLAGS_head_64.o += -I$(obj)
+endif
 endif

arch/ppc64/kernel/Makefile

···
 
 ifneq ($(CONFIG_PPC_MERGE),y)
 ifeq ($(CONFIG_PPC_ISERIES),y)
-arch/ppc64/kernel/head.o: arch/powerpc/platforms/iseries/lparmap.s
-AFLAGS_head.o += -Iarch/powerpc/platforms/iseries
+arch/ppc64/kernel/head.o: arch/powerpc/kernel/lparmap.s
+AFLAGS_head.o += -Iarch/powerpc/kernel
 endif
 endif