fdts: stm32mp1: move FDCAN to PLL4_R

LTDC modifies the clock frequency to adapt it to the display. Such
frequency change is not detected by the FDCAN driver that instead
caches the value at probe and pretends to use it later.

This change fixes the issue by moving the FDCAN to PLL4_R,
leaving the LTDC alone on PLL4_Q.

Signed-off-by: Antonio Borneo <antonio.borneo@st.com>
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Change-Id: I8230868b2b5fd6deb6e3f9dc3911030d8d484c58
diff --git a/fdts/stm32mp157a-avenger96.dts b/fdts/stm32mp157a-avenger96.dts
index 9df72b4..907940c 100644
--- a/fdts/stm32mp157a-avenger96.dts
+++ b/fdts/stm32mp157a-avenger96.dts
@@ -246,7 +246,7 @@
 		CLK_UART6_HSI
 		CLK_UART78_HSI
 		CLK_SPDIF_PLL4P
-		CLK_FDCAN_PLL4Q
+		CLK_FDCAN_PLL4R
 		CLK_SAI1_PLL3Q
 		CLK_SAI2_PLL3Q
 		CLK_SAI3_PLL3Q
diff --git a/fdts/stm32mp157a-dk1.dts b/fdts/stm32mp157a-dk1.dts
index b17d501..4ea83f7 100644
--- a/fdts/stm32mp157a-dk1.dts
+++ b/fdts/stm32mp157a-dk1.dts
@@ -266,7 +266,7 @@
 		CLK_UART6_HSI
 		CLK_UART78_HSI
 		CLK_SPDIF_PLL4P
-		CLK_FDCAN_PLL4Q
+		CLK_FDCAN_PLL4R
 		CLK_SAI1_PLL3Q
 		CLK_SAI2_PLL3Q
 		CLK_SAI3_PLL3Q
diff --git a/fdts/stm32mp157c-ed1.dts b/fdts/stm32mp157c-ed1.dts
index ed55725..7794925 100644
--- a/fdts/stm32mp157c-ed1.dts
+++ b/fdts/stm32mp157c-ed1.dts
@@ -272,7 +272,7 @@
 		CLK_UART6_HSI
 		CLK_UART78_HSI
 		CLK_SPDIF_PLL4P
-		CLK_FDCAN_PLL4Q
+		CLK_FDCAN_PLL4R
 		CLK_SAI1_PLL3Q
 		CLK_SAI2_PLL3Q
 		CLK_SAI3_PLL3Q