Update vcd_ddl_core.h

Same as 1080p foder but with 720p, im not sure if this one is really used, but i will do the same modification just in case.

#define DDL_MAX_BIT_RATE (14*1000*1000)
to
#define DDL_MAX_BIT_RATE (100000000) or (100*1000*1000)

With this encoding should be uncapped for MPEG4 Visual, to free user selection.