Makefile: fix extra parenthesis typo when CC_STACKPROTECTOR_REGULAR i…

…s enabled

An extra parenthesis typo introduced in 19952a9 ("stackprotector:
Unify the HAVE_CC_STACKPROTECTOR logic between architectures") is
causing the following error when CONFIG_CC_STACKPROTECTOR_REGULAR is
enabled:

  Makefile:608: Cannot use CONFIG_CC_STACKPROTECTOR: -fstack-protector not supported by compiler
  Makefile:608: *** missing separator.  Stop.

Signed-off-by: Fathi Boudra <[email protected]>
Acked-by: Kees Cook <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

Makefile

@@ -606,7 +606,7 @@ ifdef CONFIG_CC_STACKPROTECTOR_REGULAR
   stackp-flag := -fstack-protector
   ifeq ($(call cc-option, $(stackp-flag)),)
     $(warning Cannot use CONFIG_CC_STACKPROTECTOR: \
-	      -fstack-protector not supported by compiler))
+             -fstack-protector not supported by compiler)
   endif
 else ifdef CONFIG_CC_STACKPROTECTOR_STRONG
   stackp-flag := -fstack-protector-strong