build: Fix SKIP_IF_VERSION_MATCHES check

When using mixed build with a GKI kernel build, it is helpful to use
GKI_SKIP_IF_VERSIONS_MATCHES.

However, the check will fail because the first "string" in vmlinux is:
`Linux version %s (%s)` and not the expected version by this check. The
second `Linux version` string reports the expected version output.

Change the `m1` flag to `m2` flag so this check continues to work as
before.

P.S. I'm unsure why there is an extra Linux version format print first
(you can see this by executing `strings vmlinux | grep "Linux
version"`).

Test: Look for `Skipping build ...` log / time the build
Change-Id: I646911bfe602cd8e947f635395f651a55d3bfe1f
Signed-off-by: Rishi Sikka <rishisikka@google.com>
1 file changed