efi_selftest: block device test requires CONFIG_DOS_PARTITION

Do not execute the block device test if CONFIG_DOS_PARTITION=n.

Imply CONFIG_DOS_PARTITION in Kconfig.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
diff --git a/lib/efi_selftest/Makefile b/lib/efi_selftest/Makefile
index 7f84903..45ce685 100644
--- a/lib/efi_selftest/Makefile
+++ b/lib/efi_selftest/Makefile
@@ -57,7 +57,7 @@
 obj-y += efi_selftest_fdt.o
 endif
 
-ifeq ($(CONFIG_BLK)$(CONFIG_PARTITIONS),yy)
+ifeq ($(CONFIG_BLK)$(CONFIG_DOS_PARTITION),yy)
 obj-y += efi_selftest_block_device.o
 endif