ARM add initial support for the Phytium Pe2201 Board.

Add pe2201 platform code and the device tree of pe2201 platform board.
The initial support comprises the UART and PCIe.

Signed-off-by: TracyMg_Li <TracyMg_Li@outlook.com>
Changes since v1:
        fix space corrupt.
Changes since v2:
        switch to bootstd and text environment.
Changes since v3:
        add environment variables.
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 9e73b69..c80d644 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -2071,6 +2071,12 @@
 	   Support for pomelo platform.
 	   It has 8GB Sdram, uart and pcie.
 
+config TARGET_PE2201
+	bool "Support Phytium PE2201 Platform"
+	select ARM64
+	help
+	  Support for pe2201 platform.It has 2GB Sdram, uart and pcie.
+
 config TARGET_PRESIDIO_ASIC
 	bool "Support Cortina Presidio ASIC Platform"
 	select ARM64
@@ -2347,6 +2353,7 @@
 source "board/vscom/baltos/Kconfig"
 source "board/phytium/durian/Kconfig"
 source "board/phytium/pomelo/Kconfig"
+source "board/phytium/pe2201/Kconfig"
 source "board/xen/xenguest_arm64/Kconfig"
 
 source "arch/arm/Kconfig.debug"