perf/amlogic: adjust register offsets

Commit "perf/amlogic: resolve conflict between canvas & pmu"
changed the base address.

Fixes: 2016e211 ("perf/amlogic: Add support for Amlogic meson G12 SoC DDR PMU driver")
Signed-off-by: Marc Gonzalez <mgonzalez@freebox.fr>
Acked-by: Will Deacon <will@kernel.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20230327120932.2158389-4-mgonzalez@freebox.fr


Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>