boot: correct the default sequence of boot methods

The default sequence of boot methods is determined by alphabetical sorting
during linkage.

* efi_mgr must run before efi to be UEFI compliant
* pxe should run as last resort

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
diff --git a/boot/bootmeth_efi_mgr.c b/boot/bootmeth_efi_mgr.c
index ed29d7e..b7d429f 100644
--- a/boot/bootmeth_efi_mgr.c
+++ b/boot/bootmeth_efi_mgr.c
@@ -114,7 +114,7 @@
 	{ }
 };
 
-U_BOOT_DRIVER(bootmeth_efi_mgr) = {
+U_BOOT_DRIVER(bootmeth_3efi_mgr) = {
 	.name		= "bootmeth_efi_mgr",
 	.id		= UCLASS_BOOTMETH,
 	.of_match	= efi_mgr_bootmeth_ids,