Moving all NetBSD headers back where they belong.

Moving include/sys NetBSD headers to /sys/sys
Moving include/arch/*/ NetBSD headers to /sys/arch/*/include

Change-Id: Ia1a45d4e83ab806c84093ec2b61bdbea9bed65a0

lib/libc/arch/i386/sys-minix/Makefile.inc

@@ -2,9 +2,8 @@
 HERE=${.CURDIR}/arch/${MACHINE_ARCH}/sys-minix
 .PATH: ${HERE}
 
+ARCHINCLS=${NETBSDSRCDIR}/include/arch/${MACHINE_ARCH}/include/
 TMP=ucontextoffsets.h.tmp
-INCLS=../../include
-ARCHINCLS=$(INCLS)/arch/i386/include/
 CF=ucontextoffsets.cf
 
 INCS+=ucontextoffsets.h
@@ -18,7 +17,7 @@ SRCS+=   \
 	brksize.S \
 	ucontext.S
 
-ucontextoffsets.h: $(CF) $(ARCHINCLS)/stackframe.h $(INCLS)/sys/ucontext.h
+ucontextoffsets.h: ${CF} ${ARCHINCLS}/stackframe.h ${NETBSDSRCDIR}/sys/sys/ucontext.h
 	${_MKTARGET_CREATE}
 	cat ${HERE}/$(CF) | \
 		${TOOL_GENASSYM} -- ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} >$TMP && \