ShellPkg: Series of patches to fix typos - apropriate to appropriate

Cc: Jaben Carsey <jaben.carsey@intel.com>
Cc: Shumin Qiu <shumin.qiu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Giri P Mudusuru <giri.p.mudusuru@intel.com>
Reviewed-By: Jaben Carsey <jaben.carsey@intel.com>

ShellPkg/Library/UefiShellDriver1CommandsLib/DrvDiag.c

@@ -374,7 +374,7 @@ ShellCommandRunDrvDiag (
             || (ShellCommandLineGetFlag(Package, L"-m"))
            ){
       //
-      // Run the apropriate test
+      // Run the appropriate test
       //
       if        (ShellCommandLineGetFlag(Package, L"-s")) {
         Mode =   TestModeStandard;