packaging: add clang build support

Change-Id: I6702c36e35bf105d25410ff13ae13ceb34c8a3ff
Signed-off-by: Dongkyun Son <dongkyun.s@samsung.com>
Signed-off-by: Sangjung Woo <sangjung.woo@samsung.com>

Author: dkson95

packaging/hal-api-ml.spec

@@ -44,7 +44,7 @@ hal-api-ml tests package
 %prep
 %setup -q
 
-%cmake . -DCMAKE_INSTALL_PREFIX=%{_prefix} -DCMAKE_LIBDIR_PREFIX=%{_libdir} -DENABLE_HALTESTS=ON
+%cmake . -DCMAKE_C_COMPILER=%__cc -DCMAKE_CXX_COMPILER=%__cxx -DCMAKE_INSTALL_PREFIX=%{_prefix} -DCMAKE_LIBDIR_PREFIX=%{_libdir} -DENABLE_HALTESTS=ON
 
 %build
 cp %{SOURCE1} .