Reduced default stack size for lpc175x chips

Author: itzandroidtab

targets/chip/lpc1754/linkerscript.ld

@@ -10,7 +10,7 @@ OUTPUT_ARCH(arm);
 /* 
 The stack size used by the application. NOTE: you need to adjust according to your application. 
 */
-STACK_SIZE = 0x4000;
+STACK_SIZE = 0x2000;
 
 /*
 Memories definitions

targets/chip/lpc1756/linkerscript.ld

@@ -10,7 +10,7 @@ OUTPUT_ARCH(arm);
 /* 
 The stack size used by the application. NOTE: you need to adjust according to your application. 
 */
-STACK_SIZE = 0x4000;
+STACK_SIZE = 0x2000;
 
 /*
 Memories definitions

targets/chip/lpc1759/linkerscript.ld

@@ -10,7 +10,7 @@ OUTPUT_ARCH(arm);
 /* 
 The stack size used by the application. NOTE: you need to adjust according to your application. 
 */
-STACK_SIZE = 0x4000;
+STACK_SIZE = 0x2000;
 
 /*
 Memories definitions