gawk: Remove References to /usr/local/bin/gawk

Also replace the hashbangs using /bin/gawk to use
${bindir}/gawk

This fixes issues such as
riscv/meta-riscv#384

(From OE-Core rev: 3905f9beabdd219e0ec902db785cb8866f63279d)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

meta/recipes-extended/gawk/gawk_5.3.0.bb

@@ -52,6 +52,8 @@ do_install_ptest() {
 		cp ${S}/test/$i* ${D}${PTEST_PATH}/test
 	done
 	sed -i \
+	    -e 's|#! /bin/gawk|#! ${bindir}/gawk|g' \
+	    -e 's|#! /usr/local/bin/gawk|#! ${bindir}/gawk|g' \
 	    -e 's|#!${base_bindir}/awk|#!${bindir}/awk|g' ${D}${PTEST_PATH}/test/*.awk
 
 	sed -i -e "s|GAWKLOCALE|LANG|g" ${D}${PTEST_PATH}/test/Maketests