scripts: snapshot of kernel build utility scripts

This is a snapshot of build scripts taken as of msm-4.14 commit
4031478a841dd636486f566b675eb3e9cf7a68c2 (Merge "ARM: dts: msm: Disable
usb host mode u1/u2 on SM8150").

Change-Id: Ib21337237d5a67cf4d740fe347dbdaf621a6c31b
Signed-off-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>
Signed-off-by: Channagoud Kadabi <ckadabi@codeaurora.org>
Signed-off-by: Bryanh Huntsman <bryanh@codeaurora.org>