Add experimental support to Objective-C

Signed-off-by: Rodrigo Peixoto <rodrigopex@gmail.com>

Author: rodrigopex

configs/common.config

@@ -20,6 +20,13 @@ CT_CC_GCC_EXTRA_CONFIG_ARRAY="--with-gnu-ld --with-gnu-as --enable-initfini-arra
 CT_CC_GCC_CORE_EXTRA_CONFIG_ARRAY="--with-gnu-ld --with-gnu-as --enable-initfini-array"
 CT_CC_LANG_CXX=y
 CT_MULTILIB_SPACE=y
+## Experimental Objective-C and Objective-C++ gcc support
+CT_EXPERIMENTAL=y
+CT_CC_SUPPORT_OBJC=y
+CT_CC_SUPPORT_OBJCXX=y
+CT_CC_LANG_OBJC=y
+CT_CC_LANG_OBJCXX=y
+CT_CC_LANG_OTHERS="objc"
 
 # Picolibc
 CT_LIBC_PICOLIBC=y