[pyro][PATCH v2 2/2] gcc: Remove patch causing ICE on x86_64 valgrind compile (on x86-64 only)

["André Draszik" <git@andred.net>]

From: André Draszik <andre.draszik@jci.com>

This is similar to commit f76ee525a75d, but instead of disabling
the patch on all builds, we only remove it for x86-64 builds, as
the original change's commit message mentioned issues with this
patch applied on that architecture only.

Signed-off-by: André Draszik <andre.draszik@jci.com>
---
 meta/recipes-devtools/gcc/gcc-6.4.inc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/meta/recipes-devtools/gcc/gcc-6.4.inc b/meta/recipes-devtools/gcc/gcc-6.4.inc
index 1803917f01..9a23863022 100644
--- a/meta/recipes-devtools/gcc/gcc-6.4.inc
+++ b/meta/recipes-devtools/gcc/gcc-6.4.inc
@@ -81,9 +81,11 @@ SRC_URI = "\
            file://0048-sync-gcc-stddef.h-with-musl.patch \
            file://0054_all_nopie-all-flags.patch \
            file://0055-unwind_h-glibc26.patch \
-           file://0056-LRA-PR70904-relax-the-restriction-on-subreg-reload-f.patch \
+           ${LRA_PR70904_PATCH} \
            ${BACKPORTS} \
 "
+LRA_PR70904_PATCH = "file://0056-LRA-PR70904-relax-the-restriction-on-subreg-reload-f.patch"
+LRA_PR70904_PATCH_x86-64 = ""
 BACKPORTS = "\
            file://CVE-2016-6131.patch \
            file://0057-ARM-PR-82445-suppress-32-bit-aligned-ldrd-strd-peeph.patch \
-- 
2.16.2