config: Add RAM1 memory region parameters to mbed_config.cmake

Add ARM1 memory region defines to mbed_config.tmpl as most of the
targets in targets.json has both RAM and RAM1 configurations

Author: rajkan01

Diff for: src/mbed_tools/build/_internal/templates/mbed_config.tmpl

@@ -66,6 +66,12 @@ set(MBED_TARGET_DEFINITIONS{% for component in components %}
 {%- endif %}
 {% if mbed_ram_size is defined %}
     MBED_RAM_SIZE={{ mbed_ram_size | to_hex }}
+{%- endif %}
+{% if mbed_ram1_start is defined %}
+    MBED_RAM1_START={{ mbed_ram1_start | to_hex }}
+{%- endif %}
+{% if mbed_ram1_size is defined %}
+    MBED_RAM1_SIZE={{ mbed_ram1_size | to_hex }}
 {%- endif %}
     TARGET_LIKE_MBED
     __MBED__=1