efi_loader: enable CONFIG_CMD_NVEDIT_EFI on QEMU

To reduce the default image size CONFIG_CMD_NVEDIT_EFI was disabled by
default. Re-enable it on the QEMU platforms supporting the UEFI sub-system.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
diff --git a/configs/qemu-x86_defconfig b/configs/qemu-x86_defconfig
index e71b8a0..9ba4f8f 100644
--- a/configs/qemu-x86_defconfig
+++ b/configs/qemu-x86_defconfig
@@ -19,6 +19,7 @@
 CONFIG_LAST_STAGE_INIT=y
 CONFIG_CMD_CPU=y
 CONFIG_CMD_BOOTEFI_SELFTEST=y
+CONFIG_CMD_NVEDIT_EFI=y
 # CONFIG_CMD_FLASH is not set
 CONFIG_CMD_IDE=y
 CONFIG_CMD_SPI=y