fix(makefiles): Compile standalone by default

Hello_World/Makefile

@@ -111,7 +111,9 @@ PROJ_CFLAGS+=-std=c99
 #MXC_OPTIMIZE_CFLAGS=-O1
 
 # Point this variable to a linker file to override the default file
+ifneq "$(APP)" ""
 LINKERFILE=$(CMSIS_ROOT)/Device/Maxim/$(TARGET_UC)/Source/GCC/$(TARGET_LC)_app.ld
+endif
 
 ################################################################################
 # Include external library makefiles here

Hello_World/build_image

 make clean
-make
+make APP=1
 make build/max32665.bin
 cp build/max32665.bin card10.bin
 python ../bootloader/crc_patch.py card10.bin

testapp/Makefile

@@ -108,7 +108,9 @@ PROJ_CFLAGS+=-std=c99
 #MXC_OPTIMIZE_CFLAGS=-O1
 
 # Point this variable to a linker file to override the default file
+ifneq "$(APP)" ""
 LINKERFILE=$(CMSIS_ROOT)/Device/Maxim/$(TARGET_UC)/Source/GCC/$(TARGET_LC)_app.ld
+endif
 
 ################################################################################
 # Include external library makefiles here

testapp/build_image

 make clean
-make
+make APP=1
 make build/max32665.bin
 cp build/max32665.bin card10.bin
 python ../bootloader/crc_patch.py card10.bin