ARM: DTS: Update pcm052 based dts files (bk4r1/pcm052)

This commit provides update and renames the bk4r1.dts to vf610-bk4r1.dts
file with more on SoC HW description.
The pcm052.dts has been renamed to vf610-pcm052.dts as well.

Moreover, a new vf610-pcm052.drsi file has been introduced
to reuse the common code between devices based on Phytec's
pcm052 modules.
Ported from Linux kernel - v4.20 (tag)

Signed-off-by: Lukasz Majewski <lukma@denx.de>
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 8167cdb..82f28b2 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -492,8 +492,8 @@
 dtb-$(CONFIG_VF610) += vf500-colibri.dtb \
 	vf610-colibri.dtb \
 	vf610-twr.dtb \
-	pcm052.dtb \
-	bk4r1.dtb
+	vf610-pcm052.dtb \
+	vf610-bk4r1.dtb
 
 dtb-$(CONFIG_MX53) += imx53-cx9020.dtb \
 	imx53-kp.dtb