psplash: update to latest git revision and clean up

Update SRCREV to pick up:

c359546 Fix psplash-systemd failures
3c0a4f3 Remove generated psplash-poky-img.h

Also:
* set the unit type in psplash-start.service to "notify" to
  complete the psplash-systemd race fix
* remove the rest of the now unnecessary has_png logic bits
* change the generated image header destination to B instead of S
  since that now works after the recent makefile changes, and will
  avoid unnecessarily polluting the source tree

(From OE-Core rev: 6f31da5632220a09ac65b8f361cdc9c64e64ce35)

Signed-off-by: Scott Murray <scott.murray@konsulko.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-core/psplash/files/psplash-start.service

@@ -4,6 +4,7 @@ DefaultDependencies=no
 RequiresMountsFor=/run
 
 [Service]
+Type=notify
 ExecStart=/usr/bin/psplash
 
 [Install]

meta/recipes-core/psplash/psplash_git.bb

@@ -6,7 +6,7 @@ LICENSE = "GPLv2+"
 LIC_FILES_CHKSUM = "file://psplash.h;beginline=1;endline=8;md5=8f232c1e95929eacab37f00900580224"
 DEPENDS = "gdk-pixbuf-native"
 
-SRCREV = "aea172a24c5b0bdc0f4efa780c0faa00c9238362"
+SRCREV = "0a902f7cd875ccf018456451be369f05fa55f962"
 PV = "0.1+git${SRCPV}"
 PR = "r15"
 
@@ -24,7 +24,6 @@ python __anonymous() {
     splashfiles = d.getVar('SPLASH_IMAGES').split()
     pkgs = []
     localpaths = []
-    haspng = False
     for uri in splashfiles:
         fetcher = bb.fetch2.Fetch([uri], d)
         flocal = os.path.basename(fetcher.localpath(uri))
@@ -42,8 +41,6 @@ python __anonymous() {
             bb.fatal("The output name '%s' derived from the URI %s is not valid, please specify the outsuffix parameter" % (outname, uri))
         else:
             pkgs.append(outname)
-        if flocal.endswith(".png"):
-            haspng = True
         localpaths.append(flocal)
 
     # Set these so that we have less work to do in do_compile and do_install_append
@@ -82,7 +79,7 @@ python do_compile () {
     # Build a separate executable for each splash image
     workdir = d.getVar('WORKDIR')
     convertscript = "%s/make-image-header.sh" % d.getVar('S')
-    destfile = "%s/psplash-poky-img.h" % d.getVar('S')
+    destfile = "%s/psplash-poky-img.h" % d.getVar('B')
     localfiles = d.getVar('SPLASH_LOCALPATHS').split()
     outputfiles = d.getVar('SPLASH_INSTALL').split()
     for localfile, outputfile in zip(localfiles, outputfiles):