openssl: don't override the CC passed at configure time

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/openssl/openssl.mk

@@ -43,8 +43,8 @@ define OPENSSL_CONFIGURE_CMDS
 endef
 
 define OPENSSL_BUILD_CMDS
-	$(MAKE1) CC=$(TARGET_CC) -C $(@D) all build-shared
-	$(MAKE1) CC=$(TARGET_CC) -C $(@D) do_linux-shared
+	$(MAKE1) -C $(@D) all build-shared
+	$(MAKE1) -C $(@D) do_linux-shared
 endef
 
 define OPENSSL_INSTALL_STAGING_CMDS