curl: Fix build on armv6l

https://github.com/curl/curl/pull/9054

Signed-off-by: Peter Müller <peter.mueller@ipfire.org>

src/patches/curl-7.84.0-easy_lock_h_include_sched_h_if_available_to_fix_build.patch

@@ -0,0 +1,24 @@
+commit e2e7f54b7bea521fa8373095d0f43261a720cda0
+Author: Daniel Stenberg <daniel@haxx.se>
+Date:   Mon Jun 27 08:46:21 2022 +0200
+
+    easy_lock.h: include sched.h if available to fix build
+    
+    Patched-by: Harry Sintonen
+    
+    Closes #9054
+
+diff --git a/lib/easy_lock.h b/lib/easy_lock.h
+index 819f50ce8..1f54289ce 100644
+--- a/lib/easy_lock.h
++++ b/lib/easy_lock.h
+@@ -36,6 +36,9 @@
+ 
+ #elif defined (HAVE_ATOMIC)
+ #include <stdatomic.h>
++#if defined(HAVE_SCHED_YIELD)
++#include <sched.h>
++#endif
+ 
+ #define curl_simple_lock atomic_bool
+ #define CURL_SIMPLE_LOCK_INIT false