lame: also disable debug handling on xtensa

Similar to the other architectures we have disabled it for. At the same time
also adjust the comment as we now do this for several other architectures.

Fixes http://autobuild.buildroot.net/results/b7e/b7e466580561e32fb584399e5914cd61a37bf7e9/

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/lame/lame.mk

@@ -17,9 +17,9 @@ LAME_LICENSE_FILES = COPYING
 # Building lame with debug symbols needs the following macros to be
 # defined: _FPU_MASK_IM, _FPU_MASK_ZM, _FPU_MASK_OM.
 # So, if BR2_ENABLE_DEBUG is selected, then we have force lame to be
-# built without debug symbols for Aarch64 and MIPS because these
-# architectures don't have those macros defined.
-ifeq ($(BR2_ENABLE_DEBUG)$(BR2_aarch64)$(BR2_arm)$(BR2_armeb)$(BR2_mips)$(BR2_mipsel)$(BR2_mips64)$(BR2_mips64el),yy)
+# built without debug symbols because these architectures don't have
+# those macros defined.
+ifeq ($(BR2_ENABLE_DEBUG)$(BR2_aarch64)$(BR2_arm)$(BR2_armeb)$(BR2_mips)$(BR2_mipsel)$(BR2_mips64)$(BR2_mips64el)$(BR2_xtensa),yy)
 LAME_CONF_OPTS += --disable-debug
 endif