dm: dts: Convert driver model tags to use new schema

Now that Linux has accepted these tags, move the device tree files in
U-Boot over to use them.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/dts/fsl-imx8qm-apalis-u-boot.dtsi b/arch/arm/dts/fsl-imx8qm-apalis-u-boot.dtsi
index 956d724..f2d6b18 100644
--- a/arch/arm/dts/fsl-imx8qm-apalis-u-boot.dtsi
+++ b/arch/arm/dts/fsl-imx8qm-apalis-u-boot.dtsi
@@ -4,133 +4,133 @@
  */
 
 &mu {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &clk {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &iomuxc {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &pd_lsio {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &pd_lsio_gpio0 {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &pd_lsio_gpio1 {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &pd_lsio_gpio2 {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &pd_lsio_gpio3 {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &pd_lsio_gpio4 {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &pd_lsio_gpio5 {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &pd_lsio_gpio6 {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &pd_lsio_gpio7 {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &pd_dma {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &pd_dma_lpuart1 {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &pd_conn {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &pd_conn_sdch0 {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &pd_conn_sdch1 {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &pd_conn_sdch2 {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &gpio0 {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &gpio1 {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &gpio2 {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &gpio3 {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &gpio4 {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &gpio5 {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &gpio6 {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &gpio7 {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &lpuart0 {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &lpuart1 {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &lpuart2 {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &lpuart3 {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &usdhc1 {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &usdhc2 {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };
 
 &usdhc3 {
-	u-boot,dm-pre-proper;
+	bootph-some-ram;
 };