Android: fix compile

In early NDKs (previous to 9) Elf32_auxv_t struct was not defined at all.
In NDK 9+ Elf32_auxv_t struct is already defined in elf.h and we'll get an error.
We need to include asm/procinfo.h for HWCAP_VFP.

Change-Id: I1ba30991ea9dd14ad9d7273c58ed6e61cd75255e
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>

src/3rdparty/javascriptcore/JavaScriptCore/assembler/MacroAssemblerARM.cpp

@@ -37,14 +37,7 @@
 #include <unistd.h>
 #include <elf.h>
 # if OS(ANDROID) && PLATFORM(QT)
-typedef struct
-{
-    uint32_t a_type;
-    union
-    {
-        uint32_t a_val;
-    } a_un;
-} Elf32_auxv_t;
+# include <asm/procinfo.h>
 # else
 # include <asm/hwcap.h>
 # endif