Fixed bit_extract

Change-Id: I92d7b7a302e3fa0db84889fb5dc6b612e6a53c73

samples/0_Intro/bit_extract/Makefile

@@ -24,4 +24,3 @@ $(EXE): bit_extract.cpp
 
 clean:
 	rm -f *.o $(EXE)
-	

samples/0_Intro/bit_extract/bit_extract.cpp

@@ -37,7 +37,7 @@ THE SOFTWARE.
     }\
 }
 
-void __global__
+__global__ void
 bit_extract_kernel(hipLaunchParm lp, uint32_t *C_d, const uint32_t *A_d, size_t N)
 {
     size_t offset = (hipBlockIdx_x * hipBlockDim_x + hipThreadIdx_x);