drivers: delete unnecessary HOSTCFLAGS

HOSTCFLAGS is meaningless because no host programs
are compiled there.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>

drivers/bios_emulator/Makefile

@@ -12,5 +12,4 @@ EXTRA_CFLAGS += -I. -I./include -I$(TOPDIR)/include \
 	-D__PPC__  -D__BIG_ENDIAN__
 
 CFLAGS += $(EXTRA_CFLAGS)
-HOSTCFLAGS += $(EXTRA_CFLAGS)
 CPPFLAGS += $(EXTRA_CFLAGS)

drivers/net/npe/Makefile

@@ -8,7 +8,6 @@
 LOCAL_CFLAGS  += -I$(TOPDIR)/drivers/net/npe/include -DCONFIG_IXP425_COMPONENT_ETHDB -D__linux
 CFLAGS  += $(LOCAL_CFLAGS)
 CPPFLAGS  += $(LOCAL_CFLAGS) # needed for depend
-HOSTCFLAGS  += $(LOCAL_CFLAGS)
 
 obj-y := npe.o \
 	miiphy.o \