gen_ld_sects.py: fix issues reported by pycodestyle and re-indent

Fixes issues reported by: pycodestyle gen_ld_sects.py and re-indent
(4 spaces).
Patch obtained by running: autopep8 -i gen_ld_sects.py.

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
diff --git a/scripts/gen_ld_sects.py b/scripts/gen_ld_sects.py
index c5dc3a7..f8c897d 100755
--- a/scripts/gen_ld_sects.py
+++ b/scripts/gen_ld_sects.py
@@ -7,55 +7,58 @@
 import sys
 import re
 
+
 def usage():
-	print "Usage: {0} <section reg exp match> [<skip section>...]".format( \
-		sys.argv[0])
-	sys.exit (1)
+    print "Usage: {0} <section reg exp match> [<skip section>...]".format(
+        sys.argv[0])
+    sys.exit(1)
+
 
 def main():
-	if len(sys.argv) < 2 :
-		usage()
+    if len(sys.argv) < 2:
+        usage()
 
-	in_shdr = False
-	section_headers = re.compile("Section Headers:")
-	key_to_flags = re.compile("Key to Flags:")
-	match_rule = re.compile(sys.argv[1])
-	skip_sections = sys.argv[2:]
+    in_shdr = False
+    section_headers = re.compile("Section Headers:")
+    key_to_flags = re.compile("Key to Flags:")
+    match_rule = re.compile(sys.argv[1])
+    skip_sections = sys.argv[2:]
 
-	for line in sys.stdin:
-		if section_headers.match(line) :
-			in_shdr = True;
-			continue
-		if key_to_flags.match(line) :
-			in_shdr = False;
-			continue
+    for line in sys.stdin:
+        if section_headers.match(line):
+            in_shdr = True
+            continue
+        if key_to_flags.match(line):
+            in_shdr = False
+            continue
 
-		if not in_shdr :
-			continue
+        if not in_shdr:
+            continue
 
-		words = line.split()
+        words = line.split()
 
-		if len(words) < 3 :
-			continue
+        if len(words) < 3:
+            continue
 
-		if words[0] == "[" :
-			name_offs = 2
-		else :
-			name_offs = 1;
+        if words[0] == "[":
+            name_offs = 2
+        else:
+            name_offs = 1
 
-		sect_name = words[name_offs]
-		sect_type = words[name_offs + 1]
+        sect_name = words[name_offs]
+        sect_type = words[name_offs + 1]
 
-		if sect_type != "PROGBITS" :
-			continue
+        if sect_type != "PROGBITS":
+            continue
 
-		if not match_rule.match(sect_name) :
-			continue
+        if not match_rule.match(sect_name):
+            continue
 
-		if sect_name in skip_sections :
-			continue
+        if sect_name in skip_sections:
+            continue
 
-		print '\t*({0})'.format(sect_name)
+        print '\t*({0})'.format(sect_name)
+
 
 if __name__ == "__main__":
-        main()
+    main()