arm64: fpsimd: include <linux/init.h> in fpsimd.h

fpsimd.h uses the __init annotation, so pull in linux/init.h
Acked-by: NMark Rutland <mark.rutland@arm.com>
Signed-off-by: NWill Deacon <will.deacon@arm.com>

arch/arm64/include/asm/fpsimd.h

@@ -22,6 +22,7 @@
 #ifndef __ASSEMBLY__
 
 #include <linux/cache.h>
+#include <linux/init.h>
 #include <linux/stddef.h>
 
 /*