newlib: Move syscalls from newlib to libgloss

By passing --disabled-newlib-supplied-syscalls, newlib will disable the
generation of builtin syscalls and move this to libgloss.  (This also
affects the generation of crt0.o.)

libgloss SHOULD then provide the syscalls, crt0.o and other functions that
are no longer part of newlib itself.  This now means that you must link
with both newlib and libgloss, whereas before newlib would run in many
configurations by itself.

(From OE-Core rev: f495e1f771b60d2db11ffa351adf56ba664fe7e1)

Signed-off-by: Mark Hatle <mark.hatle@kernel.crashing.org>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-core/newlib/newlib.inc

@@ -42,6 +42,7 @@ EXTRA_OECONF = " \
 		--with-gnu-as \
 		--with-gnu-ld \
 		--disable-multilib \
+		--disable-newlib-supplied-syscalls \
 		"
 
 do_configure[cleandirs] = "${B}"