contrib/libosmo-dsp.spec.in: various fixes

* remove reference to non-existing HTML_TIMESTAMP.diff
* change name libosmo-dsp -> libosmodsp, so the assumed directory name
  inside the tarball is correct, and for consistency with the debian
  package
* rename the file to libosmodsp.spec for consistency
* fix gitignore entry

Change-Id: Id2a4b9406cc492d9fb7a5d2e9da804990bd22530

.gitignore

@@ -31,4 +31,4 @@ Doxyfile
 .*.swp
 
 doc/
-contrib/libosmocore.spec
+contrib/libosmodsp.spec

Makefile.am

@@ -14,7 +14,7 @@ dist-hook:
 
 EXTRA_DIST = \
 	    .version \
-	    contrib/libosmo-dsp.spec.in \
+	    contrib/libosmodsp.spec.in \
 	    debian \
 	    git-version-gen \
 	    $(NULL)

configure.ac

@@ -81,7 +81,7 @@ AC_CONFIG_HEADER(config.h)
 
 AC_OUTPUT(
 	libosmodsp.pc
-	contrib/libosmo-dsp.spec
+	contrib/libosmodsp.spec
 	include/Makefile
 	include/osmocom/Makefile
 	include/osmocom/dsp/Makefile

contrib/libosmodsp.spec.in

@@ -6,7 +6,7 @@
 # This file is under MIT license
 
 %define libname libosmodsp0
-Name:           libosmo-dsp
+Name:           libosmodsp
 Version:        @VERSION@
 Release:        0
 Summary:        SDR DSP primitives
@@ -14,7 +14,6 @@ License:        GPL-2.0-only
 Group:          Productivity/Hamradio/Other
 URL:            https://osmocom.org/projects/libosmo-dsp
 Source:         %{name}-%{version}.tar.xz
-Patch0:         HTML_TIMESTAMP.diff
 BuildRequires:  automake >= 1.6
 BuildRequires:  doxygen
 BuildRequires:  fdupes
@@ -52,7 +51,6 @@ A library with SDR DSP primitives headers - Documentation
 
 %prep
 %setup -q
-%patch0 -p1
 
 %build
 echo "%version" >.tarball-version