Fix EAP-GPSK server compilation for SHA256 cipher suite

Need to use common EAP_GPSK_SHA256 define for this instead of the
server-specific EAP_SERVER_GPSK_SHA256 which was not really used
anywhere.

Signed-hostap: Jouni Malinen <j@w1.fi>

hostapd/Android.mk

@@ -352,7 +352,7 @@ ifdef CONFIG_EAP_GPSK
 L_CFLAGS += -DEAP_SERVER_GPSK
 OBJS += src/eap_server/eap_server_gpsk.c src/eap_common/eap_gpsk_common.c
 ifdef CONFIG_EAP_GPSK_SHA256
-L_CFLAGS += -DEAP_SERVER_GPSK_SHA256
+L_CFLAGS += -DEAP_GPSK_SHA256
 endif
 NEED_SHA256=y
 NEED_AES_OMAC1=y

hostapd/Makefile

@@ -332,7 +332,7 @@ ifdef CONFIG_EAP_GPSK
 CFLAGS += -DEAP_SERVER_GPSK
 OBJS += ../src/eap_server/eap_server_gpsk.o ../src/eap_common/eap_gpsk_common.o
 ifdef CONFIG_EAP_GPSK_SHA256
-CFLAGS += -DEAP_SERVER_GPSK_SHA256
+CFLAGS += -DEAP_GPSK_SHA256
 endif
 NEED_SHA256=y
 NEED_AES_OMAC1=y