Merge branch 'opencl-uint' into 'master'

Remove duplicated uint typedef

See merge request pycodegen/pystencils!84

pystencils/include/opencl_stdint.h

 #ifndef OPENCL_STDINT
 #define OPENCL_STDINT
 
-typedef unsigned int      uint;
 typedef unsigned int      uint_t;
 
 typedef signed char       int8_t;