Fix math functions so they can be used on host codes as well

Add __host__ for some math functions to fix the following tests:

- hipSinglePrecisionMathHost
- hipDobulePrecisionMathHost


[ROCm/clr commit: 5e86860c05]

projects/clr/hipamd/include/hcc_detail/hip_runtime.h

@@ -142,7 +142,7 @@ __device__ float fmodf(float x, float y);
 __device__ float frexpf(float x, float y);
 __device__ float hypotf(float x, float y);
 __device__ float ilogbf(float x);
-__device__ unsigned isfinite(float a);
+__host__ __device__ unsigned isfinite(float a);
 __device__ unsigned isinf(float a);
 __device__ unsigned isnan(float a);
 __device__ float j0f(float x);
@@ -181,7 +181,7 @@ __device__ float roundf(float x);
 __device__ float rsqrtf(float x);
 __device__ float scalblnf(float x, long int n);
 __device__ float scalbnf(float x, int n);
-__device__ unsigned signbit(float a);
+__host__ __device__ unsigned signbit(float a);
 __device__ void sincosf(float x, float *sptr, float *cptr);
 __device__ void sincospif(float x, float *sptr, float *cptr);
 __device__ float sinf(float x);
@@ -234,7 +234,7 @@ __device__ double fmod(double x, double y);
 __device__ double frexp(double x, int *nptr);
 __device__ double hypot(double x, double y);
 __device__ double ilogb(double x);
-__device__ unsigned isfinite(double x);
+__host__ __device__ unsigned isfinite(double x);
 __device__ unsigned isinf(double x);
 __device__ unsigned isnan(double x);
 __device__ double j0(double x);
@@ -273,7 +273,7 @@ __device__ double round(double x);
 __host__ __device__ double rsqrt(double x);
 __device__ double scalbln(double x, long int n);
 __device__ double scalbn(double x, int n);
-__device__ unsigned signbit(double a);
+__host__ __device__ unsigned signbit(double a);
 __device__ double sin(double a);
 __device__ double sincos(double x, double *sptr, double *cptr);
 __device__ double sincospi(double x, double *sptr, double *cptr);