lpc1769 inherits from lpc1768; reuse lpc1768.ld for LPC1769 target

Author: grygorek

targets/TARGET_NXP/TARGET_LPC176X/device/TOOLCHAIN_GCC_ARM/TARGET_XPRESSO_LPC1769/XPRESSO_LPC1769.ld

@@ -244,14 +244,7 @@
         "device_name": "LPC1768"
     },
     "LPC1769": {
-        "inherits": ["LPCTarget"],
-        "core": "Cortex-M3",
-        "extra_labels": ["NXP", "LPC176X", "MBED_LPC1768"],
-        "supported_toolchains": ["ARM", "uARM", "GCC_ARM", "GCC_CR", "IAR"],
-        "detect_code": ["1010"],
-        "device_has": ["ANALOGIN", "ANALOGOUT", "CAN", "DEBUG_AWARENESS", "ETHERNET", "I2C", "I2CSLAVE", "INTERRUPTIN", "LOCALFILESYSTEM", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "RTC", "SEMIHOST", "SERIAL", "SERIAL_FC", "SLEEP", "SPI", "SPISLAVE", "STDIO_MESSAGES"],
-        "release_versions": ["2", "5"],
-        "features": ["LWIP"],
+        "inherits": ["LPC1768"],
         "device_name": "LPC1769"
     },
     "ARCH_PRO": {