Revert "modsign: Abort modules_install when signing fails"

This reverts commit caf6fe91ddf62a96401e21e9b7a07227440f4185.

The commit was fine but is no longer needed as of commit 3a2429e1faf4
("kbuild: change if_changed_rule for multi-line recipe").  Let's go
back to using ";" to be consistent.

For some discussion, see:

https://lkml.kernel.org/r/CAK7LNASde0Q9S5GKeQiWhArfER4S4wL1=R_FW8q0++_X3T5=hQ@mail.gmail.com

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/scripts/Makefile.modinst b/scripts/Makefile.modinst
index ff5ca98..0dae402 100644
--- a/scripts/Makefile.modinst
+++ b/scripts/Makefile.modinst
@@ -23,7 +23,7 @@
     mkdir -p $(2) ; \
     cp $@ $(2) ; \
     $(mod_strip_cmd) $(2)/$(notdir $@) ; \
-    $(mod_sign_cmd) $(2)/$(notdir $@) $(patsubst %,|| true,$(KBUILD_EXTMOD)) && \
+    $(mod_sign_cmd) $(2)/$(notdir $@) $(patsubst %,|| true,$(KBUILD_EXTMOD)) ; \
     $(mod_compress_cmd) $(2)/$(notdir $@)
 
 # Modules built outside the kernel source tree go into extra by default