fix "make install_kernel_headers" to not create asm-generic for 2.4 kernels.
fix "make install_kernel_headers" to not create asm-generic
for 2.4 kernels.


brgl/uclibc-ng,hjl-tools/uClibc,foss-for-synopsys-dwc-arc-processors/uClibc,majek/uclibc-vx32,hjl-tools/uClibc,majek/uclibc-vx32,foss-for-synopsys-dwc-arc-processors/uClibc,ffainelli/uClibc,ysat0/uClibc,brgl/uclibc-ng,atgreen/uClibc-moxie,OpenInkpot-archive/iplinux-uclibc,groundwater/uClibc,foss-for-synopsys-dwc-arc-processors/uClibc,OpenInkpot-archive/iplinux-uclibc,skristiansson/uClibc-or1k,foss-xtensa/uClibc,waweber/uclibc-clang,gittup/uClibc,kraj/uClibc,hjl-tools/uClibc,hwoarang/uClibc,wbx-github/uclibc-ng,majek/uclibc-vx32,mephi42/uClibc,atgreen/uClibc-moxie,foss-xtensa/uClibc,OpenInkpot-archive/iplinux-uclibc,m-labs/uclibc-lm32,waweber/uclibc-clang,mephi42/uClibc,skristiansson/uClibc-or1k,gittup/uClibc,ddcc/klee-uclibc-0.9.33.2,ddcc/klee-uclibc-0.9.33.2,hwoarang/uClibc,foss-xtensa/uClibc,ndmsystems/uClibc,kraj/uClibc,brgl/uclibc-ng,kraj/uclibc-ng,ysat0/uClibc,wbx-github/uclibc-ng,foss-for-synopsys-dwc-arc-processors/uClibc,kraj/uclibc-ng,hjl-tools/uClibc,ffainelli/uClibc,kraj/uclibc-ng,groundwater/uClibc,gittup/uClibc,gittup/uClibc,ffainelli/uClibc,brgl/uclibc-ng,hwoarang/uClibc,groundwater/uClibc,kraj/uClibc,wbx-github/uclibc-ng,ddcc/klee-uclibc-0.9.33.2,ndmsystems/uClibc,ndmsystems/uClibc,hwoarang/uClibc,ffainelli/uClibc,groundwater/uClibc,kraj/uclibc-ng,m-labs/uclibc-lm32,atgreen/uClibc-moxie,waweber/uclibc-clang,skristiansson/uClibc-or1k,czankel/xtensa-uclibc,waweber/uclibc-clang,ddcc/klee-uclibc-0.9.33.2,kraj/uClibc,czankel/xtensa-uclibc,ndmsystems/uClibc,czankel/xtensa-uclibc,groundwater/uClibc,wbx-github/uclibc-ng,skristiansson/uClibc-or1k,ffainelli/uClibc,m-labs/uclibc-lm32,m-labs/uclibc-lm32,hjl-tools/uClibc,OpenInkpot-archive/iplinux-uclibc,ysat0/uClibc,czankel/xtensa-uclibc,ysat0/uClibc,mephi42/uClibc,foss-xtensa/uClibc,atgreen/uClibc-moxie,mephi42/uClibc,majek/uclibc-vx32