[NFC] Correct comments and line spacing

- Correct spelling mistakes or working in comments.
- Adding missing line separators.
- Add missing comments for namespace closing brace.

Change-Id: If09cdd38aa088b0f68f750dfdef81351eb8c4935


[ROCm/clr commit: eb16dc5ef3]

projects/clr/rocclr/device/rocm/rocprogram.cpp

@@ -230,7 +230,6 @@ HSAILProgram::HSAILProgram(roc::NullDevice& device, amd::Program& owner) : roc::
   machineTarget_ = dev().deviceInfo().machineTarget_;
 }
 
-
 HSAILProgram::~HSAILProgram() {
 #if defined(WITH_COMPILER_LIB)
   acl_error error;