MT#57407 warning: this 'if' clause does not guard... (AmSdp.cpp)

This commit fixes that:

     AmSdp.cpp: In function 'void parse_sdp_media(AmSdp*, char*)':
     AmSdp.cpp:858:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
        858 |         if (next > media_line)
            |         ^~
     AmSdp.cpp:860:11: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
        860 |           m.type = media_type(media);
            |           ^

Change-Id: Ie5b7760d3e11ec825ea68138d06eaeb150da202c

core/AmSdp.cpp

@@ -856,8 +856,10 @@ static void parse_sdp_media(AmSdp* sdp_msg, char* s)
         next = parse_until(media_line, ' ');
         string media;
         if (next > media_line)
-          media = string(media_line, int(next-media_line)-1);
-          m.type = media_type(media);
+          media = string(media_line, int(next-media_line) - 1);
+
+        m.type = media_type(media);
+
         if (m.type == MT_NONE) {
           ERROR("parse_sdp_media: Unknown media type\n");
         }