efi: Allow expression as func argument to efi_call_* macros on all platforms

efi: Allow expression as func argument to efi_call_* macros on all platforms

On EFI platforms where EFI calls do not require a wrapper (notably i386-efi
and arm64-efi), the func argument needs to be wrapped in parenthesis to
allow valid syntax when func is an expression which evaluates to a function
pointer. On EFI platforms that do need a wrapper, this was never an issue
because func is passed to the C function wrapper as an argument and thus
does not need parenthesis to be evaluated.

Signed-off-by: Glenn Washburn <development@efficientek.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>