Kconfig: clean up the efi configuration status

The EFI_LOADER and EFI config options are randomly scattered under lib/
making it cumbersome to navigate and enable options, unless you really
know what you are doing. On top of that the existing options are in
random order instead of a logical one.

So let's move things around a bit and move them under boot/. Present a
generic UEFI entry where people can select Capsules, Protocols,
Services,  and an option to compile U-Boot as an EFI for X86

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/boot/Kconfig b/boot/Kconfig
index 7ac3457..925afe0 100644
--- a/boot/Kconfig
+++ b/boot/Kconfig
@@ -1,5 +1,7 @@
 menu "Boot options"
 
+source "lib/efi_loader/Kconfig"
+
 menu "Boot images"
 
 config ANDROID_BOOT_IMAGE