clocksource/drivers/exynos_mct: Fix silly typo resulting in checkpatch warning

clocksource/drivers/exynos_mct: Fix silly typo resulting in checkpatch warning

Commit ae460fd9164b ("clocksource/drivers/exynos_mct: Prioritise Arm
arch timer on arm64") changed the rating of the MCT clockevents device
to be lower than the Arm architected timer and, in the process, replaced
a semicolon with a comma thanks to a silly copy-paste error.

Put the semicolon back so that the code looks more idiomatic and resolve
the SUSPECT_COMMA_SEMICOLON warning from checkpatch at the same time.

Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Will Deacon <will@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20211103164804.30182-1-will@kernel.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>