Update Buildroot to 2021.02 (#1274)

buildroot/package/dhcpcd/0006-src-privsep-linux.c-add-support-for-microblaze-24.patch

@@ -0,0 +1,42 @@
+From 89a2f250ed978950aecf4854d1cee16f57946759 Mon Sep 17 00:00:00 2001
+From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+Date: Sun, 31 Jan 2021 21:57:40 +0100
+Subject: [PATCH]  src/privsep-linux.c: add support for microblaze (#24)
+
+Fix the following build failure:
+
+privsep-linux.c:206:4: error: #error "Platform does not support seccomp filter yet"
+ #  error "Platform does not support seccomp filter yet"
+    ^~~~~
+In file included from privsep-linux.c:36:
+privsep-linux.c:213:38: error: 'SECCOMP_AUDIT_ARCH' undeclared here (not in a function); did you mean 'SECCOMP_ALLOW_ARG'?
+  BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, SECCOMP_AUDIT_ARCH, 1, 0),
+                                      ^~~~~~~~~~~~~~~~~~
+
+It should be noted that AUDIT_ARCH_MICROBLAZE is only defined since
+kernel 3.18 and
+https://github.com/torvalds/linux/commit/ce5d112827e5c2e9864323d0efd7ec2a62c6dce0
+
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+(cherry picked from commit e3a40586dbb584774d0a17bc277e69cb500cfa38)
+Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
+---
+ src/privsep-linux.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/src/privsep-linux.c b/src/privsep-linux.c
+index e374c068..a861a836 100644
+--- a/src/privsep-linux.c
++++ b/src/privsep-linux.c
+@@ -170,6 +170,8 @@ ps_root_sendnetlink(struct dhcpcd_ctx *ctx, int protocol, struct msghdr *msg)
+ #  endif
+ #elif defined(__ia64__)
+ #  define SECCOMP_AUDIT_ARCH AUDIT_ARCH_IA64
++#elif defined(__microblaze__)
++#  define SECCOMP_AUDIT_ARCH AUDIT_ARCH_MICROBLAZE
+ #elif defined(__mips__)
+ #  if defined(__MIPSEL__)
+ #    if defined(__LP64__)
+-- 
+2.29.2
+