fix(st-pmic): enclose macro parameter in parentheses

This corrects MISRA C2012-20.7
Expressions resulting from the expansion of macro parameters shall be
enclosed in parentheses.

Signed-off-by: Yann Gautier <yann.gautier@st.com>
Change-Id: I9269d7a5b6aa4573bc0ca55b3054c3475dc4b6b2
diff --git a/drivers/st/pmic/stm32mp_pmic.c b/drivers/st/pmic/stm32mp_pmic.c
index 5b43760..2bf7ce7 100644
--- a/drivers/st/pmic/stm32mp_pmic.c
+++ b/drivers/st/pmic/stm32mp_pmic.c
@@ -454,7 +454,7 @@
 };
 
 #define DEFINE_REGU(name) { \
-	.node_name = name, \
+	.node_name = (name), \
 	.ops = &pmic_ops, \
 	.driver_data = NULL, \
 	.enable_ramp_delay = 1000, \