powerpc: Add MMU support

Add support for radix MMU, 4kB and 64kB pages.

This also adds MMU interrupt test cases, and runs the interrupts
test entirely with MMU enabled if it is available (aside fro

powerpc: Add MMU support

Add support for radix MMU, 4kB and 64kB pages.

This also adds MMU interrupt test cases, and runs the interrupts
test entirely with MMU enabled if it is available (aside from
machine check tests).

Acked-by: Andrew Jones <andrew.jones@linux.dev> (configure changes)
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Message-ID: <20240612052322.218726-5-npiggin@gmail.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

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