collectd: update to 5.12.0

Update collectd to version 5.12.0.

* Refresh patches
* Remove upstreamed patch 920-fix-ubi-data-source-type.patch
* Backport a patch from upstream to fix a missing define
  (920-backport-netlink-reg-noerror.patch)

Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>
(cherry picked from commit 28747825df)

utils/collectd/patches/700-disable-sys-capability-check.patch

@@ -1,6 +1,6 @@
 --- a/configure.ac
 +++ b/configure.ac
-@@ -532,11 +532,7 @@ if test "x$ac_system" = "xLinux"; then
+@@ -533,11 +533,7 @@ if test "x$ac_system" = "xLinux"; then
      [have_cpuid_h="no (cpuid.h not found)"]
    )