Fix ETHMEM_SECTION placement for ARM on LPC1768

Author: chrissnow

features/FEATURE_LWIP/lwip-interface/lwip-eth/arch/TARGET_NXP/lpc17_emac.c

@@ -153,7 +153,7 @@ struct lpc_enetdata {
 #     define ETHMEM_SECTION __attribute__((section("AHBSRAM1"),aligned))
 #  endif
 #elif defined(TARGET_LPC17XX)
-#  if defined(TOOLCHAIN_GCC_ARM)
+#  if defined(TOOLCHAIN_GCC_ARM) || defined(TOOLCHAIN_ARM)
 #     define ETHMEM_SECTION __attribute__((section("AHBSRAM1"),aligned))
 #  endif
 #endif