Fix ARM about min-update-interval default for RPZ zones

Also, use variable names consistent with catz for rpz configuration functions
10 jobs for 251-documentation-of-rpz-min-update-interval-is-inconsistent-with-implementation in 8 minutes and 42 seconds (queued for 8 seconds)
Status Job ID Name Coverage
  Precheck
passed #12727
amd64 docker linux
precheck:debian:sid:amd64

00:00:11

 
  Build
passed #12728
amd64 docker linux
build:clang:debian:sid:amd64

00:02:42

passed #12730
i386 docker linux
build:clang:debian:sid:i386

00:03:02

passed #12729
amd64 docker linux
build:debian:sid:amd64

00:02:08

passed #12731
i386 docker linux
build:debian:sid:i386

00:02:19

 
  Test
passed #12735
amd64 docker linux
systemtest:debian:sid:amd64

00:05:10

passed #12736
i386 docker linux
systemtest:debian:sid:i386

00:05:27

passed #12733
amd64 docker linux
unittest:clang:debian:sid:amd64

00:04:05

passed #12732
amd64 docker linux
unittest:debian:sid:amd64

00:04:06

passed #12734
i386 docker linux
unittest:debian:sid:i386

00:04:03