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redhat/configs: do not set rodata=full by default

Eric Chanudet requested to merge echanude/centos-stream-9:rhel-14734 into main-automotive

Upstream Status: RHEL Only
JIRA: https://issues.redhat.com/browse/RHEL-14734

Boot by default with rodata=on which does not force the linear mapping
to be mapped at page-granularity (arm64 specific). Doing so takes more
time than the KPI limit.

The cost of disabling this default is that mapping attributes in the
linear region are no longer (and unlikely) to match mappings created in
the vmalloc area. This is usually set by default as a security hardening
measure on ARM64.

Signed-off-by: Eric Chanudet echanude@redhat.com

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