Update the CONST modifier to be the same with spec. 

Buffer of EFI_FVB_WRITE should have CONST, but the PI spec miss it out. This should be an errata.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3378 6f19259b-4bc3-4df7-8a09-765794883524
2 files changed