### Description
This is to fix linker not finding symbols declared in object files inside static library files.
For this case throwing:-
> rm-none-eabi-g++: error: unrecognized command line option '--wrap=main'; did you mean '--warn-main'?
For this case to include libmbed.a which contains
mbed_alloc_wrappers.o:
U __real__calloc_r
U __real__free_r
U __real__malloc_r
U __real__memalign_r
U __real__realloc_r
00000000 T __wrap__calloc_r
00000000 T __wrap__free_r
00000000 T __wrap__malloc_r
00000000 T __wrap__memalign_r
00000000 T __wrap__realloc_r
00000000 T free_wrapper
00000000 T malloc_wrapper
00000000 T mbed_stats_heap_get
U memset
This patch also changed the library order to system and then user.
-lstdc++ -lsupc++ -lm -lc -lgcc -lnosys -lmbed
Resolves: #7155
### Pull request type
[ x ] Fix
[ ] Refactor
[ ] Target update
[ ] Feature
[ ] Breaking change
Phyo Kyaw