refactor(st): use GPIO banks definition from bindings

Use GPIO banks definition from bindings.

Change-Id: I4dcf321345e319af78285e940b72a1369569b996
Signed-off-by: Pascal Paillet <p.paillet@st.com>
diff --git a/plat/st/stm32mp2/stm32mp2_def.h b/plat/st/stm32mp2/stm32mp2_def.h
index 56c62e1..e3662ad 100644
--- a/plat/st/stm32mp2/stm32mp2_def.h
+++ b/plat/st/stm32mp2/stm32mp2_def.h
@@ -14,6 +14,7 @@
 #include <drivers/st/stm32mp25_rcc.h>
 #include <dt-bindings/clock/stm32mp25-clks.h>
 #include <dt-bindings/clock/stm32mp25-clksrc.h>
+#include <dt-bindings/gpio/stm32-gpio.h>
 #include <dt-bindings/reset/stm32mp25-resets.h>
 
 #ifndef __ASSEMBLER__