Make ARMC5 develop profile also size optimized

Due to some historical reasons ARMC 5 compiler behaves very
differently compared to others (GCC, IAR, ARM C 6) as it optimizes
performance rather than size (like the others).

All compilers should behave the same way with the same profile,
thus ARM C 5 should also drive towards size (space).

Author: Janne Kiiskila

tools/profiles/develop.json

@@ -27,7 +27,7 @@
         "ld": ["--show_full_path", "--legacyalign", "--keep=os_cb_sections"]
     },
     "ARM": {
-        "common": ["-c", "--gnu", "-Otime", "--split_sections",
+        "common": ["-c", "--gnu", "-Ospace", "--split_sections",
                    "--apcs=interwork", "--brief_diagnostics", "--restrict",
                    "--multibyte_chars", "-O3", "-DMBED_TRAP_ERRORS_ENABLED=1"],
         "asm": [],
@@ -36,7 +36,7 @@
         "ld": ["--show_full_path", "--keep=os_cb_sections"]
     },
     "uARM": {
-        "common": ["-c", "--gnu", "-Otime", "--split_sections",
+        "common": ["-c", "--gnu", "-Ospace", "--split_sections",
                    "--apcs=interwork", "--brief_diagnostics", "--restrict",
                    "--multibyte_chars", "-O3", "-D__MICROLIB",
                    "--library_type=microlib", "-DMBED_RTOS_SINGLE_THREAD",