implements proper linker script to support TLS

This change updates the linker script and dependend wile so that thread local
storage sections are properly supported and initailaized

src/ram_dram.lds

@@ -0,0 +1,12 @@
+OUTPUT_ARCH( "riscv" )
+
+ENTRY( _start )
+
+INCLUDE memory_map.ld
+
+REGION_ALIAS("LOCATION_TEXT", ram);
+REGION_ALIAS("LOCATION_RODATA", ram);
+REGION_ALIAS("LOCATION_DATA", dram);
+REGION_ALIAS("LOCATION_STACK", dram);
+
+INCLUDE sections.ld