component/haproxy: Build for generic CPU

While building haproxy on one machine, and using it on another, the CPU
optimisations can lead to haproxy not working at all on other CPUs.

In context of SlapOS packages are distributed in binary form, so haproxy
binary has to support all CPUs.

component/haproxy/buildout.cfg

@@ -19,9 +19,12 @@ configure-command = true
 # for Linux kernel 2.6.28 and above, we use "linux-glibc" as the TARGET,
 # otherwise use "generic".
 # For ARCH value, x86_64 and i[3456]86 are supported.
+# CPU is generic, and not native, as in SlapOS software released are
+# distributed in binary form, which may lead to incompatibility of such
+# compilation optimisation across various CPUs
 make-options =
   TARGET="$(uname -sr 2>/dev/null|grep -Eq '^Linux (2\.6\.2[89]|2\.6\.[3-9]|[3-9])' && echo linux-glibc || echo generic)"
-  CPU=native
+  CPU=generic
   ARCH="$(uname -m 2>/dev/null|grep -E '^(x86_64|i[3456]86)$')"
   PREFIX=@@LOCATION@@
   USE_DL=1