Implement hipGetSymbolAddress and hipGetSymbolSize

[ROCm/hip commit: 73616582d6]

projects/hip/docs/markdown/CUDA_Runtime_API_functions_supported_by_HIP.md

@@ -122,8 +122,8 @@
 | `cudaFreeHost`                                            | `hipHostFree`                 |
 | `cudaFreeMipmappedArray`                                  |                               |
 | `cudaGetMipmappedArrayLevel`                              |                               |
-| `cudaGetSymbolAddress`                                    |                               |
-| `cudaGetSymbolSize`                                       |                               |
+| `cudaGetSymbolAddress`                                    | `hipGetSymbolAddress`         |
+| `cudaGetSymbolSize`                                       | `hipGetSymbolSize`            |
 | `cudaHostAlloc`                                           | `hipHostMalloc`               |
 | `cudaHostGetDevicePointer`                                | `hipHostGetDevicePointer`     |
 | `cudaHostGetFlags`                                        | `hipHostGetFlags`             |
@@ -373,8 +373,8 @@
 | `cudaCreateChannelDesc`                                   | `hipCreateChannelDesc`                         |
 | `cudaFuncGetAttributes`                                   |                                                |
 | `cudaFuncSetCacheConfig`                                  |                                                |
-| `cudaGetSymbolAddress`                                    |                                                |
-| `cudaGetSymbolSize`                                       |                                                |
+| `cudaGetSymbolAddress`                                    | `hipGetSymbolAddress`                          |
+| `cudaGetSymbolSize`                                       | `hipGetSymbolSize`                             |
 | `cudaGetTextureAlignmentOffset`                           |                                                |
 | `cudaLaunch`                                              |                                                |
 | `cudaLaunchKernel`                                        |                                                |

projects/hip/docs/markdown/hip_kernel_language.md

@@ -159,7 +159,7 @@ void callMyKernel()
 ## Variable-Type Qualifiers
 
 ### `__constant__`
-The `__constant__` keyword is supported. The host writes constant memory before launching the kernel; from the GPU, this memory is read-only during kernel execution. The functions for accessing constant memory (hipGetSymbolAddress(), hipGetSymbolSize(), hipMemcpyToSymbol(), hipMemcpyToSymbolAsync, hipMemcpyFromSymbol, hipMemcpyFromSymbolAsync) are under development.
+The `__constant__` keyword is supported. The host writes constant memory before launching the kernel; from the GPU, this memory is read-only during kernel execution. The functions for accessing constant memory (hipGetSymbolAddress(), hipGetSymbolSize(), hipMemcpyToSymbol(), hipMemcpyToSymbolAsync(), hipMemcpyFromSymbol(), hipMemcpyFromSymbolAsync()) are available.
 
 ### `__shared__` 
 The `__shared__` keyword is supported.