package/liblinear: fix shared library install

Fix the following build failure raised since bump to version 2.43 in
commit bdd05a2b1323b4bdfbcaf559e0567a7d09f4837d:

/usr/bin/install: cannot stat '/tmp/instance-0/output-1/build/liblinear-2.43/liblinear.so.3': No such file or directory

Fixes:
 - http://autobuild.buildroot.org/results/97c2a3babe8f9df7cda069858f13e3be2508cf40

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/liblinear/liblinear.mk

@@ -14,8 +14,8 @@ LIBLINEAR_CFLAGS = $(TARGET_CFLAGS)
 ifeq ($(BR2_SHARED_LIBS)$(BR2_SHARED_STATIC_LIBS),y)
 # $1: destination directory
 define LIBLINEAR_INSTALL_SHARED
-	$(INSTALL) -m 0644 -D $(@D)/liblinear.so.3 $(1)/usr/lib/liblinear.so.3
-	ln -sf liblinear.so.3 $(1)/usr/lib/liblinear.so
+	$(INSTALL) -m 0644 -D $(@D)/liblinear.so.4 $(1)/usr/lib/liblinear.so.4
+	ln -sf liblinear.so.4 $(1)/usr/lib/liblinear.so
 endef
 LIBLINEAR_CFLAGS += -fPIC
 endif