Rename FEATURE_INITRD to LINUXRC and make it separate, not an alias to init

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/configs/android2_defconfig b/configs/android2_defconfig
index 1095094..fbc0da0 100644
--- a/configs/android2_defconfig
+++ b/configs/android2_defconfig
@@ -425,7 +425,7 @@
 CONFIG_FEATURE_INIT_SYSLOG=y
 CONFIG_FEATURE_EXTRA_QUIET=y
 CONFIG_FEATURE_INIT_COREDUMPS=y
-CONFIG_FEATURE_INITRD=y
+CONFIG_LINUXRC=y
 CONFIG_INIT_TERMINAL_TYPE="linux"
 CONFIG_MESG=y
 CONFIG_FEATURE_MESG_ENABLE_ONLY_GROUP=y