ARM: tegra: defconfig updates

ARCH_TEGRA_124_SOC: Tegra124 SoC support.
CPU_FREQ_STAT_DETAILS: Enables various sysfs files that are useful when
    testing cpufreq.
CONFIG_COMMON_CLK_DEBUG: Useful to look at the clock tree to verify that
    clocks for the various devices have been properly set up.
PINCTRL_PALMAS: Used on Dalmore board.
NEON: Enables SIMD instruction support for Tegra30 and later SoCs.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>