ARM: 9440/1: cacheinfo fix format field mask

ARM: 9440/1: cacheinfo fix format field mask

Fix C&P error left unnoticed during the reviews. The FORMAT field spans
over bits 29-31, not 24-27 of the CTR register.

Closes: https://lore.kernel.org/linux-arm-msm/01515ea0-c6f0-479f-9da5-764d9ee79ed6@samsung.com/
Fixes: a9ff94477836 ("ARM: 9433/2: implement cacheinfo support")
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>