systemd: rename service file to align with repo name

Updated systemd service file as following for better readability
start-ipkvm.service -> obmc-ikvm.service

Testing:

Verified systemd service using QEMU + AST2600EVB firmware.

Before changes:

root@evb-ast2600:~# systemctl status start-ipkvm
* start-ipkvm.service - OpenBMC ipKVM daemon

After changes:

root@evb-ast2600:~# systemctl status obmc-ikvm
* obmc-ikvm.service - OpenBMC ipKVM daemon

Change-Id: I8260a09b074b04c47821758c31ecad5d53eca40c
Signed-off-by: Mohammed Javith Akthar M <mohammedjavitham@ami.com>
diff --git a/meson.build b/meson.build
index 6e1c0f1..35eef85 100644
--- a/meson.build
+++ b/meson.build
@@ -39,7 +39,7 @@
 
 fs = import('fs')
 fs.copyfile(
-    'start-ipkvm.service',
+    'obmc-ikvm.service',
     install: true,
     install_dir:
         dependency('systemd').get_variable(