board: toradex: colibri_vf: efi_loader: unset CONFIG_EFI_UNICODE_CAPITALIZATION

Unset CONFIG_EFI_UNICODE_CAPITALIZATION on boards with tough size
restrictions.

This is analogous to commit a90bf07a
("efi_loader: unset CONFIG_EFI_UNICODE_CAPITALIZATION").
Signed-off-by: NMarcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: NAlexander Graf <agraf@suse.de>

configs/colibri_vf_defconfig

@@ -72,3 +72,4 @@ CONFIG_VIDEO_FSL_DCU_FB=y
 CONFIG_VIDEO=y
 CONFIG_SYS_CONSOLE_FG_COL=0x00
 CONFIG_OF_LIBFDT_OVERLAY=y
+# CONFIG_EFI_UNICODE_CAPITALIZATION is not set