add upstream patch that sets dylib extension also for iOS shared build

the patch was adjusted to apply on 2.1.0-beta3

Author: kambala-decapitator

recipes/luajit/all/conandata.yml

@@ -15,3 +15,7 @@ patches:
       patch_description: "Fix POSIX install with missing or incompatible ldconfig"
       patch_source: "https://github.com/LuaJIT/LuaJIT/commit/18c9cf7d3788a8f7408df45df92fc4ae3bcc0d80"
       patch_type: "bugfix"
+    - patch_file: "patches/2.1.0-beta3-ios-dylib-extension.diff"
+      patch_description: "Use dylib extension for iOS installs"
+      patch_source: "https://github.com/LuaJIT/LuaJIT/commit/b1179ea5f708c62aacc60235d28230112f419a69"
+      patch_type: "bugfix"

recipes/luajit/all/patches/2.1.0-beta3-ios-dylib-extension.diff

@@ -0,0 +1,13 @@
+diff --git a/Makefile b/Makefile
+index d789e9f374..c41b3345dd 100644
+--- a/Makefile
++++ b/Makefile
+@@ -97,7 +97,7 @@ else
+ endif
+ TARGET_SYS?= $(HOST_SYS)
+ 
+-ifeq (Darwin,$(TARGET_SYS))
++ifneq (,$(filter $(TARGET_SYS),Darwin iOS))
+   INSTALL_SONAME= $(INSTALL_DYLIBNAME)
+   INSTALL_SOSHORT1= $(INSTALL_DYLIBSHORT1)
+   INSTALL_SOSHORT2= $(INSTALL_DYLIBSHORT2)