[U-Boot] efi_loader: Rename sections to allow for implicit data

[Alexander Graf]

> Some times gcc may generate data that is then used within code that may
> be part of an efi runtime section. That data could be jump tables,
> constants or strings.
> 
> In order to make sure we catch these, we need to ensure that gcc emits
> them into a section that we can relocate together with all the other
> efi runtime bits. This only works if the -ffunction-sections and
> -fdata-sections flags are passed and the efi runtime functions are
> in a section that starts with ".text".
> 
> Up to now we had all efi runtime bits in sections that did not
> interfere with the normal section naming scheme, but this forces
> us to do so. Hence we need to move the efi_loader text/data/rodata
> sections before the global *(.text*) catch-all section.
> 
> With this patch in place, we should hopefully have an easier time
> to extend the efi runtime functionality in the future.
> 
> Signed-off-by: Alexander Graf <agraf at suse.de>

Thanks, applied to efi-next

Alex