kernel_headers: Explicitly run headers_install under 'sh'

To avoid build failures in the newer Android build systems,
run the headers_install script explicitly under 'sh'.

Change-Id: If30d2bda653c6be443345a2594e9993d9780db21
Signed-off-by: Soumil Shah <[email protected]>
Signed-off-by: Raghavendra Rao Ananta <[email protected]>
Signed-off-by: Eruvaram Kumar Raja Reddy <[email protected]>

Author: Soumil Shah

kernel_headers.py

@@ -344,7 +344,7 @@ def run_headers_install(verbose, gen_dir, headers_install, prefix, h):
   if verbose:
     print('run_headers_install: cmd is %s' % cmd)
 
-  result = subprocess.call(cmd)
+  result = subprocess.call(['sh', headers_install, h, out_h])
 
   if result != 0:
     print('error: run_headers_install: cmd %s failed %d' % (cmd, result))