Fixed some mistakes in the CMake module for float types.
Fixed some mistakes in the CMake module for float types.

dlz1123/taglib,black78/taglib,black78/taglib,videolabs/taglib,pbhd/taglib,pbhd/taglib,i80and/taglib,Distrotech/taglib,davispuh/taglib,black78/taglib,i80and/taglib,MaxLeb/taglib,dlz1123/taglib,davispuh/taglib,i80and/taglib,davispuh/taglib,taglib/taglib,TsudaKageyu/taglib,Distrotech/taglib,videolabs/taglib,taglib/taglib,Distrotech/taglib,MaxLeb/taglib,pbhd/taglib,MaxLeb/taglib,TsudaKageyu/taglib,taglib/taglib,dlz1123/taglib,videolabs/taglib,TsudaKageyu/taglib