newlib: Upgrade 4.2.0 -> 4.3.0

- Rebased fix-rs6000-crt0.patch
- Patch fix_makefile_include_arm_h.patch is no longer required, the newlib
  header dependency has been fixed upstream at 26f9cfd7
- LICENSE checksum change due to:
  - Adding SPDX identifier
  - Deleted Phoenix Systems from License and updated each licenses
  numbers accordingly.
- Add a dummy limits.h header, to make the improved preprocessor
  checks happy during configure.
- Add a patch for libgloss to maintain current behavior of TCLIBC=newlib
  by making libgloss DEPEND on newlib and use its installed headers.
- Switch to git fetcher to simplify fetching the sources and avoid future
  issues due to the way newlib release snapshots were being published.

(From OE-Core rev: 1c9cbb27dfe37ca4574c4285fb03ce394dee5ed1)

Signed-off-by: Alejandro Enedino Hernandez Samaniego <alejandro@enedino.org>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-core/newlib/newlib_git.bb

@@ -0,0 +1,20 @@
+require newlib.inc
+
+PROVIDES += "virtual/libc virtual/libiconv virtual/libintl"
+
+do_configure() {
+    export CC_FOR_TARGET="${CC}"
+    ${S}/configure ${EXTRA_OECONF}
+}
+
+do_install:append() {
+	# Move include files and libs to default directories so they can be picked up later
+	mv -v ${D}${prefix}/${TARGET_SYS}/lib ${D}${libdir}
+	mv -v ${D}${prefix}/${TARGET_SYS}/include ${D}${includedir}
+
+	# Remove original directory
+	rmdir ${D}${prefix}/${TARGET_SYS}
+}
+
+# No rpm package is actually created but -dev depends on it, avoid dnf error
+DEV_PKG_DEPENDENCY:libc-newlib = ""