Last updated with 4.9-rc7.
This commit introduces the following upstream changes:
9059a3493efe kconfig: fix relational operators for bool and tristate symbols
88127dae6ed9 kconfig/symbol.c: use correct pointer type argument for sizeof
b24413180f56 License cleanup: add SPDX GPL-2.0 license identifier to files with no license
bb3290d91695 Remove gperf usage from toolchain
ad8181060788 kconfig: fix sparse warnings in nconfig
ff85a1a80e00 kconfig: Check for libncurses before menuconfig
9be3213b14d4 gconfig: remove misleading parentheses around a condition
83c3a1bad224 xconfig: fix missing suboption and help panels on first run
e039303ff71a xconfig: fix 'Show Debug' functionality
79e51b5c2dee kconfig/nconf: Fix hang when editing symbol with a long prompt
0eb47346968f Scripts: kconfig: nconf: fix _GNU_SOURCE redefined warning
237e3ad0f195 Kconfig: Introduce the "imply" keyword
Signed-off-by: Bryan Hundven <bryanhundven@gmail.com>