BaseTools/CommonLib.h: Build failed due to MAX_LONG_FILE_PATH

BaseTools/CommonLib.h: Build failed due to MAX_LONG_FILE_PATH

REF:https://bugzilla.tianocore.org/show_bug.cgi?id=3032

We had a build fail due to the hard coded MAX_LONG_FILE_PATH value.
We should use PATH_MAX if it is available.

Cc: Bob Feng <bob.c.feng@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Yuwei Chen <yuwei.chen@intel.com>
Signed-off-by: Enze Zhu <zhuenze@byosoft.com.cn>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
Reviewed-by: Bob Feng <bob.c.feng@intel.com>