runqemu: fix special characters bug

Fix the bug in runqemu that happens when the file path contains
the specific words such as 'vmlinux', e.g. /home/frank/vmlinux.

runqemu - ERROR - wic doesn't need kernel

(From OE-Core rev: f37a74369e82b1d129d6d8a5f0f3c18fafe07d10)

Signed-off-by: Libo Chen <libo.chen.cn@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit 3c186fe7741adecb0887e36c8a9164a58fc16437)
Signed-off-by: Steve Sakoman <steve@sakoman.com>

scripts/runqemu

@@ -368,12 +368,13 @@ class BaseConfig(object):
         - Check whether it is an NFS dir
         - Check whether it is an OVMF flash file
         """
+        n = os.path.basename(p)
         if p.endswith('.qemuboot.conf'):
             self.qemuboot = p
             self.qbconfload = True
-        elif re.search('\\.bin$', p) or re.search('bzImage', p) or \
-             re.search('zImage', p) or re.search('vmlinux', p) or \
-             re.search('fitImage', p) or re.search('uImage', p):
+        elif re.search('\\.bin$', n) or re.search('bzImage', n) or \
+             re.search('zImage', n) or re.search('vmlinux', n) or \
+             re.search('fitImage', n) or re.search('uImage', n):
             self.kernel =  p
         elif os.path.isfile(p) and ('-image-' in os.path.basename(p) or '.rootfs.' in os.path.basename(p)):
             self.rootfs = p