UPSTREAM: arm: don't open-code ptrace_report_syscall()

(cherry pick from commit 70b58d896b1b30e4b89d369fbeb244c0e952cf9f)

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Bug: 9674955
Bug: 25773781
Change-Id: I2d788c0adab974b47e18d48af341ba5d281a628e
1 file changed