[Buildroot] [git commit branch/next] package/sofia-sip: correct passing of '--enable-ndebug'

commit: https://git.buildroot.net/buildroot/commit/?id=fb12adbb7613a4c05643491453dbc09151b5bf48
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/next

The preprocessor option NDEBUG, triggered by the configure option
'--enable-ndebug', should be read as 'no-debug'. When NDEBUG is set, asserts
are _disabled_.

The sofia-sip package had inverted logic, and set '--enable-ndebug' when
BR2_ENABLE_DEBUG was enabled, while it should be the other way around.

Reported-by: Arnout Vandecappelle (Essensium/Mind) <redacted>
Signed-off-by: Thomas De Schampheleire <redacted>
Signed-off-by: Yann E. MORIN <redacted>
---
 package/sofia-sip/sofia-sip.mk | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package/sofia-sip/sofia-sip.mk b/package/sofia-sip/sofia-sip.mk
index 5c383400ff..274c72fce8 100644
--- a/package/sofia-sip/sofia-sip.mk
+++ b/package/sofia-sip/sofia-sip.mk

@@ -30,7 +30,7 @@ SOFIA_SIP_CONF_OPTS += \
 	--without-openssl
 endif
 
-ifeq ($(BR2_ENABLE_DEBUG),y)
+ifeq ($(BR2_ENABLE_DEBUG),)
 SOFIA_SIP_CONF_OPTS += --enable-ndebug
 endif