mdadm: add back lost Upstream-Status tags

(From OE-Core rev: ffde22a3a78c0333f42e8bc9bad633ef279f11ca)

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-extended/mdadm/files/0001-Use-CC-to-check-for-implicit-fallthrough-warning-sup.patch

@@ -8,7 +8,7 @@ its possible that build host gcc is version 7+ but the
 cross compile used for compiling mdadm is < version 7
 
 Signed-off-by: Khem Raj <raj.khem@gmail.com>
-
+Upstream-Status: Pending
 ---
  Makefile | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

meta/recipes-extended/mdadm/files/0001-include-sys-sysmacros.h-for-major-minor-defintions.patch

@@ -25,7 +25,7 @@ Fixes
 |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 Signed-off-by: Khem Raj <raj.khem@gmail.com>
-
+Upstream-Status: Pending
 ---
  mdadm.h | 1 +
  1 file changed, 1 insertion(+)

meta/recipes-extended/mdadm/files/0001-mdadm.h-Undefine-dprintf-before-redefining.patch

@@ -14,7 +14,7 @@ In file included from policy.c:25:
 /mnt/oe/openembedded-core/build/tmp-glibc/sysroots/qemux86/usr/include/bits/stdio2.h:145:12: note: previous definition is here
 
 Signed-off-by: Khem Raj <raj.khem@gmail.com>
-
+Upstream-Status: Pending
 ---
  mdadm.h | 2 ++
  1 file changed, 2 insertions(+)

meta/recipes-extended/mdadm/files/0005-Add-a-comment-to-indicate-valid-fallthrough.patch

@@ -10,7 +10,7 @@ compiler warnings
 This works in cross and native compilation case
 
 Signed-off-by: Khem Raj <raj.khem@gmail.com>
-
+Upstream-Status: Submitted
 ---
  Grow.c        | 4 ++++
  bitmap.c      | 8 ++++++++