Staging: rtl8192e: Makefile: cleaned up Makefile cflag lines

Changed to use the proper ccflags-y option
Signed-off-by: Tracey Dent <tdent48227@gmail.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/rtl8192e/Makefile

 NIC_SELECT = RTL8192E
 
-EXTRA_CFLAGS += -DRTL8192E
-EXTRA_CFLAGS += -std=gnu89
-EXTRA_CFLAGS += -O2
-EXTRA_CFLAGS += -DTHOMAS_TURBO
-EXTRA_CFLAGS += -DENABLE_DOT11D
+ccflags-y := -DRTL8192E
+ccflags-y += -std=gnu89
+ccflags-y += -O2
+ccflags-y += -DTHOMAS_TURBO
+ccflags-y += -DENABLE_DOT11D
 
-EXTRA_CFLAGS += -DENABLE_IPS
-EXTRA_CFLAGS += -DENABLE_LPS
+ccflags-y += -DENABLE_IPS
+ccflags-y += -DENABLE_LPS
 
 r8192e_pci-objs :=		\
 	r8192E_core.o		\