[build] Fix paths to symbol files for debug targets (#1814)

Signed-off-by: Geoff Gustafson <[email protected]>

Author: grgustaf

Makefile

@@ -454,12 +454,12 @@ adebug:
 # Run gdb to connect to debug server for x86
 .PHONY: agdb
 agdb:
-	$$ZEPHYR_SDK_INSTALL_DIR/sysroots/x86_64-pokysdk-linux/usr/bin/i586-zephyr-elfiamcu/i586-zephyr-elfiamcu-gdb $(OUT)/arduino_101/zephyr.elf -ex "target remote :3333"
+	$$ZEPHYR_SDK_INSTALL_DIR/sysroots/x86_64-pokysdk-linux/usr/bin/i586-zephyr-elfiamcu/i586-zephyr-elfiamcu-gdb $(OUT)/arduino_101/zephyr/zephyr.elf -ex "target remote :3333"
 
 # Run gdb to connect to debug server for ARC
 .PHONY: arcgdb
 arcgdb:
-	$$ZEPHYR_SDK_INSTALL_DIR/sysroots/i686-pokysdk-linux/usr/bin/arc-poky-elf/arc-poky-elf-gdb $(OUT)/arduino_101_sss/zephyr.elf -ex "target remote :3334"
+	$$ZEPHYR_SDK_INSTALL_DIR/sysroots/i686-pokysdk-linux/usr/bin/arc-poky-elf/arc-poky-elf-gdb $(OUT)/arduino_101_sss/zephyr/zephyr.elf -ex "target remote :3334"
 
 # Linux target
 .PHONY: linux