scripts: package: adapt to UOS/deepin Secure Boot signing routine#292

Avenger-285714 merged 1 commit intodeepin-community:linux-6.6.ydeepin-community/kernel:linux-6.6.yfrom

MingcongBai:bai/linux-6.6.y/uefi-signMingcongBai/deepin-kernel:bai/linux-6.6.y/uefi-signCopy head branch name to clipboard