pcm052: add new BK4r1 target based on PCM052 SoM

Signed-off-by: Albert ARIBAUD (3ADEV) <albert.aribaud@3adev.fr>
diff --git a/board/phytec/pcm052/Kconfig b/board/phytec/pcm052/Kconfig
index 88524a3..212f994 100644
--- a/board/phytec/pcm052/Kconfig
+++ b/board/phytec/pcm052/Kconfig
@@ -17,3 +17,23 @@
 	default 256
 
 endif
+
+if TARGET_BK4R1
+
+config SYS_BOARD
+	default "pcm052"
+
+config SYS_VENDOR
+	default "phytec"
+
+config SYS_SOC
+	default "vf610"
+
+config SYS_CONFIG_NAME
+	default "bk4r1"
+
+config PCM052_DDR_SIZE
+	int
+	default 512
+
+endif