edosk2674: add RAMBASE patch to 4.13.x

target/linux/patches/4.13.2/h8300.patch

@@ -0,0 +1,12 @@
+diff -Nur linux-4.13.2.orig/arch/h8300/Kconfig.cpu linux-4.13.2/arch/h8300/Kconfig.cpu
+--- linux-4.13.2.orig/arch/h8300/Kconfig.cpu	2017-09-13 23:21:49.000000000 +0200
++++ linux-4.13.2/arch/h8300/Kconfig.cpu	2017-09-16 18:32:15.263759679 +0200
+@@ -96,4 +96,8 @@
+         hex "Load offset"
+ 	default 0
+ 
++config RAMBASE
++	hex "RAM base address"
++	default 0x400000
++
+ endmenu