fix: Add enable libdovi flag windows build.bat

[bex39]

build parameter

build.bat mingw release static enable-libdovi

output

Svt[info]: -------------------------------------------
Svt[info]: SVT [version]:   SVT-AV1-PSY Encoder Lib 9f81da26-dirty
Svt[info]: SVT [build]  :   Clang 17.0.6     64 bit
Svt[info]: LIB Build date: Feb 20 2024 04:44:53
Svt[info]: -------------------------------------------
Svt[warn]: Instance 1: The Subjective SSIM configuration is considered experimental at this stage. Keep in mind for benchmarking analysis that this configuration will likely harm metric performance.
Svt[info]: Number of logical cores available: 12
Svt[info]: Number of PPCS 71
Svt[info]: [asm level on system : up to avx2]
Svt[info]: [asm level selected : up to avx2]
Svt[info]: -------------------------------------------
Svt[info]: SVT [config]: main profile   tier (auto) level (auto)
Svt[info]: SVT [config]: width / height / fps numerator / fps denominator       : 1920 / 816 / 25 / 1
Svt[info]: Parsing Dolby Vision RPU file...
Svt[info]: SVT [config]: bit-depth / color format                   : 10 / YUV420
Svt[info]: SVT [config]: preset / tune / pred struct                    : 9 / Subjective SSIM / random access
Svt[info]: SVT [config]: gop size / mini-gop size / key-frame type          : 251 / 16 / key frame
Svt[info]: Loaded 65554 DoVi RPUs
Svt[info]: SVT [config]: BRC mode / rate factor                     : CRF / 24 
Svt[info]: SVT [config]: AQ mode / variance boost strength / sample size / octile   : 2 / 2 / 8x8 / 6
Svt[info]: SVT [config]: Sharpness / level                      : 1 / 2
Svt[info]: -------------------------------------------
Encoding

[gianni-rosato]

Thank you!