Yocto 2.3

Move OpenBMC to Yocto 2.3(pyro).

Tested: Built and verified Witherspoon and Palmetto images
Change-Id: I50744030e771f4850afc2a93a10d3507e76d36bc
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
Resolves: openbmc/openbmc#2461
diff --git a/import-layers/yocto-poky/meta/recipes-bsp/grub/grub2.inc b/import-layers/yocto-poky/meta/recipes-bsp/grub/grub2.inc
index b69de9f..a93c99e 100644
--- a/import-layers/yocto-poky/meta/recipes-bsp/grub/grub2.inc
+++ b/import-layers/yocto-poky/meta/recipes-bsp/grub/grub2.inc
@@ -35,6 +35,11 @@
            file://0001-Enforce-no-pie-if-the-compiler-supports-it.patch \
            file://0001-grub-core-kern-efi-mm.c-grub_efi_finish_boot_service.patch \
            file://0002-grub-core-kern-efi-mm.c-grub_efi_get_memory_map-Neve.patch \
+           file://0001-build-Use-AC_HEADER_MAJOR-to-find-device-macros.patch \
+           file://0001-btrfs-avoid-used-uninitialized-error-with-GCC7.patch \
+           file://0002-i386-x86_64-ppc-fix-switch-fallthrough-cases-with-GC.patch \
+           file://0003-Add-gnulib-fix-gcc7-fallthrough.diff.patch \
+           file://0004-Fix-remaining-cases-of-gcc-7-fallthrough-warning.patch \
             "
 
 DEPENDS = "flex-native bison-native autogen-native"