gammu: Really fix compilation under 64-bit

The InstallDev section needed the same treatment as the Install one.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

utils/gammu/Makefile

@@ -10,7 +10,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=gammu
 PKG_VERSION:=1.39.0
-PKG_RELEASE:=2
+PKG_RELEASE:=3
 
 PKG_SOURCE_URL:=https://dl.cihar.com/gammu/releases
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
@@ -52,7 +52,7 @@ define Build/InstallDev
 	mkdir -p $(1)/usr/include
 	$(CP) $(PKG_INSTALL_DIR)/usr/include/gammu $(1)/usr/include/
 	mkdir -p $(1)/usr/lib
-	$(CP)    $(PKG_INSTALL_DIR)/usr/lib$(LIB_SUFFIX)/lib{Gammu*,gsmsd*} $(1)/usr/lib/
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/lib{Gammu*,gsmsd*} $(1)/usr/lib/
 endef
 
 define Package/gammu/install