CHROMIUM: ARM: exynos: busfreq: Fix array-out-of-bound access.

CHROMIUM: ARM: exynos: busfreq: Fix array-out-of-bound access.

In the 1st loop of
arch/arm/mach-exynos/busfreq_opp_exynos5.c:show_time_in_state, sprintf
accesses data->time_in_state[PPMU_MIF][i], where i ranges [0..6], but
time_in_state is defined as array[2][4]. Fixed by change time_in_state
definition.

BUG=None
TEST=Build successfully

Change-Id: I2d4cab59281509e33d34b55892f18635e8b7fa09
Signed-off-by: Han Shen <shenhan@google.com>
Reviewed-on: https://gerrit.chromium.org/gerrit/49266
Reviewed-by: Olof Johansson <olofj@chromium.org>