package/pps-tools: bump version to fix usage without bash

As reported in bug #11426, the ppsfind shell script uses /bin/bash,
but the Buildroot pps-tools package doesn't depend on bash. In fact,
upstream has fixed the problem, and the script can now be used with a
POSIX shell, and the shebang is /bin/sh.

This commit therefore bumps pps-tools to the latest upstream commit,
which is precisely this fix.

Fixes bug #11426.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/pps-tools/pps-tools.hash

@@ -1,2 +1,2 @@
 # Locally calculated
-sha256 eee0a76118cf11d94f575ee43804a6991379f2c734b400ba01ac4811d0498e97  pps-tools-47333f24af878f67ce48022e8af16419713aa1ac.tar.gz
+sha256 1168f1474235017af413afdb07288303ad7a7b12a0282f3bf9ed0e22fe0d7d2e  pps-tools-e2b25049df9a4da28168b7378016f1650d0dfa6b.tar.gz

package/pps-tools/pps-tools.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-PPS_TOOLS_VERSION = 47333f24af878f67ce48022e8af16419713aa1ac
+PPS_TOOLS_VERSION = e2b25049df9a4da28168b7378016f1650d0dfa6b
 PPS_TOOLS_SITE = $(call github,ago,pps-tools,$(PPS_TOOLS_VERSION))
 PPS_TOOLS_INSTALL_STAGING = YES
 PPS_TOOLS_LICENSE = GPL-2.0+