tree b0e4f2bbbfabb939be8847dc51197fe62e4c3cc2
parent 0c874100108f03401cb3154801d2671bbad40ad4
author Masahiro Yamada <yamada.masahiro@socionext.com> 1545381184 +0900
committer Masahiro Yamada <yamada.masahiro@socionext.com> 1546003358 +0900

kconfig: split some C files out of zconf.y

I want to compile each C file independently instead of including all
of them from zconf.y.

Split out confdata.c, expr.c, symbol.c, and preprocess.c .
These are low-hanging fruits.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>