clk: stm32mp1: add debug information

Add support of clk dump command and
display information during probe (under CONFIG_DISPLAY_CPUINFO).

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
diff --git a/configs/stm32mp15_basic_defconfig b/configs/stm32mp15_basic_defconfig
index 304688e..d20b2ab 100644
--- a/configs/stm32mp15_basic_defconfig
+++ b/configs/stm32mp15_basic_defconfig
@@ -19,6 +19,7 @@
 # CONFIG_CMD_IMPORTENV is not set
 CONFIG_CMD_MEMINFO=y
 CONFIG_CMD_ADC=y
+CONFIG_CMD_CLK=y
 CONFIG_CMD_FUSE=y
 CONFIG_CMD_GPIO=y
 CONFIG_CMD_GPT=y