M2354: Temporary workaround to MBED_ROM_START and friends absent

MBED_ROM_START and friends are absent in Mbed CLI2. Hard-code these values as workaround.
ARMmbed/mbed-tools#222

Author: ccli8

targets/TARGET_NUVOTON/TARGET_M2354/device/partition_M2354_mem.h

@@ -35,22 +35,26 @@
 
 /* Resolve non-secure ROM start */
 #ifndef MBED_ROM_START
-#error("MBED_ROM_START must be present!!!")
+/* FIXME: Workaround to cmake build doesn't generate this symbol yet */
+#define MBED_ROM_START          0x10070400
 #endif
 
 /* Resolve non-secure ROM size */
 #ifndef MBED_ROM_SIZE
-#error("MBED_ROM_SIZE must be present!!!")
+/* FIXME: Workaround to cmake build doesn't generate this symbol yet */
+#define MBED_ROM_SIZE           0x8F400
 #endif
 
 /* Resolve non-secure RAM start */
 #ifndef MBED_RAM_START
-#error("MBED_RAM_START must be present!!!")
+/* FIXME: Workaround to cmake build doesn't generate this symbol yet */
+#define MBED_RAM_START          0x30014000
 #endif
 
 /* Resolve non-secure RAM size */
 #ifndef MBED_RAM_SIZE
-#error("MBED_RAM_SIZE must be present!!!")
+/* FIXME: Workaround to cmake build doesn't generate this symbol yet */
+#define MBED_RAM_SIZE           0x2C000
 #endif
 
 /* Mbed build tool passes just APPLICATION_xxx macros to C/C++ files and just

targets/TARGET_NUVOTON/TARGET_M2354/device/partition_M2354_mem.icf.h

@@ -20,22 +20,26 @@
 
 /* Resolve non-secure ROM start */
 if (! isdefinedsymbol(MBED_ROM_START)) {
-    error "MBED_ROM_START must be present!!!";
+    /* FIXME: Workaround to cmake build doesn't generate this symbol yet */
+    define MBED_ROM_START               = 0x10070400;
 }
 
 /* Resolve non-secure ROM size */
 if (! isdefinedsymbol(MBED_ROM_SIZE)) {
-    error "MBED_ROM_SIZE must be present!!!";
+    /* FIXME: Workaround to cmake build doesn't generate this symbol yet */
+    define MBED_ROM_SIZE                = 0x8F400;
 }
 
 /* Resolve non-secure RAM start */
 if (! isdefinedsymbol(MBED_RAM_START)) {
-    error "MBED_RAM_START must be present!!!";
+    /* FIXME: Workaround to cmake build doesn't generate this symbol yet */
+    define MBED_RAM_START               = 0x30014000;
 }
 
 /* Resolve non-secure RAM size */
 if (! isdefinedsymbol(MBED_RAM_SIZE)) {
-    error "MBED_RAM_SIZE must be present!!!";
+    /* FIXME: Workaround to cmake build doesn't generate this symbol yet */
+    define MBED_RAM_SIZE                = 0x2C000;
 }
 
 /* Mbed build tool passes just APPLICATION_xxx macros to C/C++ files and just