rng: Introduce SPL_DM_RNG
Add SPL variant of DM_RNG so that the DM_RNG can be disabled in SPL
if necessary. This may be necessary due to e.g. size constraints of
the SPL.
Signed-off-by: Marek Vasut <marex@denx.de>
diff --git a/test/dm/Makefile b/test/dm/Makefile
index a3ce7b3..c12589d 100644
--- a/test/dm/Makefile
+++ b/test/dm/Makefile
@@ -102,7 +102,7 @@
obj-$(CONFIG_SYSRESET) += sysreset.o
obj-$(CONFIG_DM_REGULATOR) += regulator.o
obj-$(CONFIG_CMD_RKMTD) += rkmtd.o
-obj-$(CONFIG_DM_RNG) += rng.o
+obj-$(CONFIG_$(SPL_TPL_)DM_RNG) += rng.o
obj-$(CONFIG_DM_RTC) += rtc.o
obj-$(CONFIG_SCMI_FIRMWARE) += scmi.o
obj-$(CONFIG_SCSI) += scsi.o