SWDEV-447806 - fix for HIP RTC example re-uses kernel variable

Change-Id: I9a1d18868098225012d01515c60b7bcdbe7bc533

docs/how-to/hip_rtc.md

@@ -6,10 +6,10 @@ Kernels can be stored as a text string and can be passed to HIPRTC APIs alongsid
 NOTE:
 
 * This library can be used on systems without HIP installed nor AMD GPU driver installed at all (offline compilation). Therefore, it does not depend on any HIP runtime library.
-* But it does depend on comgr. You may try to statically link comgr into HIPRTC to avoid any ambiguity.
+* But it does depend on COMGr. You may try to statically link COMGr into HIPRTC to avoid any ambiguity.
 * Developers can decide to bundle this library with their application.
 
-## Example
+## Compilation APIs
 
 To use HIPRTC functionality, HIPRTC header needs to be included first.
 `#include <hip/hiprtc.h>`
@@ -32,12 +32,12 @@ R"(
 Now to compile this kernel, it needs to be associated with `hiprtcProgram` type, which is done by declaring `hiprtcProgram prog;` and associating the string of kernel with this program:
 
 ```cpp
-hiprtcCreateProgram(&prog,                 // HIPRTC program
-                    kernel,                // kernel string
-                    "gpu_kernel.cu",       // Name of the file
-                    num_headers,           // Number of headers
-                    &header_sources[0],    // Header sources
-                    &header_names[0]);     // Name of header files
+hiprtcCreateProgram(&prog,                 // HIPRTC program handle
+                    kernel_source,         // HIP kernel source string
+                    "vector_add.cpp",      // Name of the HIP program, can be null or an empty string
+                    0,                     // Number of headers
+                    NULL,                  // Header sources
+                    NULL);                 // Name of header files
 ```
 
 `hiprtcCreateProgram` API also allows you to add headers which can be included in your RTC program.