Move i586-mingw32msvc- ahead of i686-w64-mingw32- in search order

awk.exe generated by i686-w64-mingw32-gcc crashes in WINE 1.2.
It runs fine in real machine. But for testability 32-bit
toolchain is better compiled by i586-mingw32msvc-gcc

Change-Id: Ibdba2ae3ac7416c2c05719a31a960d90dfd78a8f
1 file changed