collectd: update to 5.9.0

Update collectd to version 5.9.0

* remove backported upstream patches (sensors, modbus)
* remove lua patch that has been been implemented upstream
  (See collectd PR 3144)
* refresh patches and accommodate into upstream path changes
* place the 'stations' datatype for iwinfo in alpbetically
  correct place in types.db
* add libmnl dependency to 'processes' plugin required for the
  new Linux process Delay Accounting capability.
  (Alternatively the capability & requirement might be patched away
   in Makefile.am, HAVE_LIBTASKSTATS from collectd_4ea7a572)

* new plugins (disabled): ampq1, gpu_nvidia, pcie_errors,
                          write_stackdriver, write_syslog

compile-tested: ar71xx/WNDR3700 (all plugins)
run-tested: ar71xx/WNDR3700 (selected plugins)

Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>
(cherry picked from commit 08d759f14a)

utils/collectd/patches/600-fix-libmodbus-detection.patch

@@ -18,7 +18,7 @@ Reversed patch to be applied:
 
 --- a/configure.ac
 +++ b/configure.ac
-@@ -3327,9 +3327,9 @@ if test "x$with_libmodbus" = "xyes"; the
+@@ -3399,9 +3399,9 @@ if test "x$with_libmodbus" = "xyes"; the
    SAVE_CPPFLAGS="$CPPFLAGS"
    CPPFLAGS="$CPPFLAGS $with_libmodbus_cflags"
  
@@ -33,8 +33,8 @@ Reversed patch to be applied:
 --- a/src/modbus.c
 +++ b/src/modbus.c
 @@ -26,7 +26,7 @@
- #include "configfile.h"
  #include "plugin.h"
+ #include "utils/common/common.h"
  
 -#include <modbus.h>
 +#include <modbus/modbus.h>