cmake: include folder and common folder is private to llama library g…

…gerganov#11630

src/CMakeLists.txt

@@ -29,7 +29,7 @@ add_library(llama
             unicode-data.cpp
             )
 
-target_include_directories(llama PUBLIC . ../include ../common)
+target_include_directories(llama PRIVATE . ../include ../common)
 target_compile_features   (llama PUBLIC cxx_std_17) # don't bump
 
 target_link_libraries(llama PUBLIC ggml)