#35 Make ARM's EFI_DRIVER_ENTRY_POINT compatible with MSVC

[Pete Batard]

This patch simply duplicates the use of /ENTRY option being passed to the MSVC ARM linker, to specify the entry point, as is already the case for ia32 and x86_64.
Required to enable the compilation of ARM drivers with MSVC, without having to manually specify the entry point.

[Nigel Croxon]

Fixed in commit 6605c16fc8b1fd3b2085364902d1fa73aa7fad76

Thank you Pete.