mpc83xx: Migrate SPCR to Kconfig

Migrate the SPCR setting to Kconfig.

Signed-off-by: Mario Six <mario.six@gdsys.cc>
diff --git a/arch/powerpc/cpu/mpc83xx/initreg/Kconfig b/arch/powerpc/cpu/mpc83xx/initreg/Kconfig
new file mode 100644
index 0000000..82c2489
--- /dev/null
+++ b/arch/powerpc/cpu/mpc83xx/initreg/Kconfig
@@ -0,0 +1,5 @@
+menu "Initial register configuration"
+
+source "arch/powerpc/cpu/mpc83xx/initreg/Kconfig.spcr"
+
+endmenu