fix section AHBSRAM for ethmem

Author: JojoS62

connectivity/drivers/emac/TARGET_NXP_EMAC/TARGET_LPCTarget/lpc17_emac.cpp

@@ -127,7 +127,7 @@ struct lpc_enetdata {
 
 #if defined(TARGET_LPC17XX)
 #  if defined(TOOLCHAIN_GCC_ARM) || defined(TOOLCHAIN_ARM)
-#     define ETHMEM_SECTION __attribute__((section("AHBSRAM1"),aligned))
+#     define ETHMEM_SECTION __attribute__((section("AHBSRAM"), aligned(32)))
 #  endif
 #endif