Use already qstripped BR2_TOOLCHAIN_EXTERNAL_PREFIX everywhere

The BR2_TOOLCHAIN_EXTERNAL_PREFIX variable is already qstripped and
stored in the TOOLCHAIN_EXTERNAL_PREFIX variable in
toolchain-external.mk, so use this variable everywhere.

This will be useful for a later patch that makes the derivation of
TOOLCHAIN_EXTERNAL_PREFIX a little more complex.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Romain Naour <romain.naour@gmail.com>
[Arnout: split off into separate patch]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Reviewed-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/Makefile.in

@@ -184,7 +184,7 @@ endif
 ifeq ($(BR2_TOOLCHAIN_BUILDROOT),y)
 TARGET_CROSS = $(HOST_DIR)/usr/bin/$(GNU_TARGET_NAME)-
 else
-TARGET_CROSS = $(HOST_DIR)/usr/bin/$(call qstrip,$(BR2_TOOLCHAIN_EXTERNAL_PREFIX))-
+TARGET_CROSS = $(HOST_DIR)/usr/bin/$(TOOLCHAIN_EXTERNAL_PREFIX)-
 endif
 
 # Define TARGET_xx variables for all common binutils/gcc

package/wine/wine.mk

@@ -34,7 +34,7 @@ WINE_CONF_OPTS = \
 # wrapper believes what the real gcc is named, and force the tuple of
 # the external toolchain, not the one we compute in GNU_TARGET_NAME.
 ifeq ($(BR2_TOOLCHAIN_EXTERNAL),y)
-WINE_CONF_OPTS += TARGETFLAGS="-b $(call qstrip,$(BR2_TOOLCHAIN_EXTERNAL_PREFIX))"
+WINE_CONF_OPTS += TARGETFLAGS="-b $(TOOLCHAIN_EXTERNAL_PREFIX)"
 endif
 
 ifeq ($(BR2_PACKAGE_ALSA_LIB)$(BR2_PACKAGE_ALSA_LIB_SEQ)$(BR2_PACKAGE_ALSA_LIB_RAWMIDI),yyy)