recordmcount: Kernel style formatting

Fix up the whitespace irregularity in the ELF switch
blocks.

Swapping the initial value of gpfx allows us to
simplify all but one of the one-line switch cases even
further.

Link: http://lkml.kernel.org/r/647f21f43723d3e831cedd3238c893db03eea6f0.1564596289.git.mhelsley@vmware.com

Signed-off-by: Matt Helsley <mhelsley@vmware.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>