Makefile: pre-set ARCH and CROSS_COMPILE

Signed-off-by: kykdev <kykint@naver.com>
build.sh: cleanups

Signed-off-by: kykdev <kykint@naver.com>
drivers: cpufreq: import latest interactive from https://android.googlesource.com/kernel/common

Signed-off-by: kykdev <kykint@naver.com>