StandaloneMmPkg/BuildOptions : Add CLANGPDB DLINK_FLAGS to build options

[Issue] : There is no DLINK_FLAGS definition for CLANGPDB,
	leading to potential discrepancies in build alignments

[Resolution] : This change adds a CLANGPDB line for DLINK_FLAGS.
	Maintaining the alignment with existing standards in place for
	other compiler packages.

Signed-off-by: Deepak5x <[email protected]>

Author: deepak5x

StandaloneMmPkg/StandaloneMmPkg.dsc

@@ -174,3 +174,4 @@ GCC:*_*_*_CC_FLAGS = -mstrict-align
 [BuildOptions.X64]
   MSFT:*_*_*_DLINK_FLAGS = /ALIGN:4096
   GCC:*_GCC*_*_DLINK_FLAGS = -z common-page-size=0x1000
+  CLANGPDB: *_*_*_DLINK_FLAGS = /ALIGN:4096