[compiler-rt] [ASan][Windows] Honor asan config flags on windows when set through the user function (PR #122990)

[David Justo via llvm-commits]

davidmrdavid wrote:

ping @vitalybuka / @zmodem, my apologies if this is spammy, just not sure if this is falling under the radar. Thanks!

https://github.com/llvm/llvm-project/pull/122990