enable multilibs on arm

Signed-off-by: Kumar Gala <[email protected]>

Author: galak

configs/arm.config

@@ -400,7 +400,7 @@ CT_CC_GCC_HAS_LIBMPX=y
 CT_CC_GCC_ENABLE_CXX_FLAGS=""
 CT_CC_GCC_CORE_EXTRA_CONFIG_ARRAY=""
 CT_CC_GCC_EXTRA_CONFIG_ARRAY="--with-gnu-ld --with-gnu-as"
-CT_CC_GCC_MULTILIB_LIST=""
+CT_CC_GCC_MULTILIB_LIST="rmprofile"
 # CT_CC_GCC_SYSTEM_ZLIB is not set
 CT_CC_GCC_CONFIG_TLS=m