SecurityPkg: Fix typos in comments

This patch fixes the following typos:
- intialized -> initialized
- TURE -> TRUE
- successull -> successfully
- hanlder -> handler
- funciton -> function
- Seperator -> Separator
- Sumbit -> Submit
Also convert EFI_D_ERROR to DEBUG_ERROR for some debug messages.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Gary Lin <glin@suse.com>
Reviewed-by: Chao Zhang <chao.b.zhang@intel.com>

SecurityPkg/Tcg/Opal/OpalPasswordDxe/OpalDriver.c

@@ -406,7 +406,7 @@ OpalDriverGetDeviceList(
   ReadyToBoot callback to send BlockSid command.
 
   @param  Event   Pointer to this event
-  @param  Context Event hanlder private Data
+  @param  Context Event handler private Data
 
 **/
 VOID