powerpc: move ADDR_MAP to Kconfig

Move ADDR_MAP related config options from include/configs/*.h to the
proper place in lib/Kconfig. This has been done using
./tools/moveconfig.py and manual inspection of the generated changes.
This is a preparation to use ADDR_MAP helper on ARM 32bit Raspberry Pi4
board for mapping the PCIe XHCI MMIO, which is above the 4GiB identity
mapping limit.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/lib/Kconfig b/lib/Kconfig
index fc7d684..2142bd0 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -1,5 +1,18 @@
 menu "Library routines"
 
+config ADDR_MAP
+	bool "Enable support for non-identity virtual-physical mappings"
+	help
+	  Enables helper code for implementing non-identity virtual-physical
+	  memory mappings for 32bit CPUs.
+
+config SYS_NUM_ADDR_MAP
+	int "Size of the address-map table"
+	depends on ADDR_MAP
+	default 16
+	help
+	  Sets the number of entries in the virtual-physical mapping table.
+
 config BCH
 	bool "Enable Software based BCH ECC"
 	help