uclibc: rename uclibc-update to uclibc-update-config

The original name uclibc-update is confusing as it only updates a
configuration file.

Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

toolchain/uClibc/uclibc.mk

@@ -500,7 +500,7 @@ uclibc-config: $(UCLIBC_DIR)/.config
 
 uclibc-oldconfig: $(UCLIBC_DIR)/.oldconfig
 
-uclibc-update: uclibc-config
+uclibc-update-config: uclibc-config
 	cp -f $(UCLIBC_DIR)/.config $(UCLIBC_CONFIG_FILE)
 
 uclibc-configured: gcc_initial kernel-headers $(UCLIBC_DIR)/.configured